Unable to open projects in 2.7 from 2.6

[nickfrats]

Currently I'm trying to open up some of my projects I saved in version 2.6. Each time I try to open one, a failed error message comes up. Are the old project files not compatible with the new version? I find it easiest to save my settings in projects rather then have to import and export profiles, mainly because it saves my material and the settings all in one.

[nallath]

Could you share your logs? Without it we can't see what's going wrong. I've just tested it on my machine and it seems to work just fine.

[nickfrats]

In this portion of the log I opened two files successfully and two unsuccessfully. One successful file was from 2.7 and one was actually from 2.6 (this is the first time I've gotten any file from 2.6 to open). The two other files that failed to open were also from version 2.6. Afterwards I just closed out of Cura. Let me know if there is anything else I can provide to get this sorted out.

2017-09-05 10:38:12,576 - ERROR - UM.Logger.logException [76]: Exception: Could not deserialize container Ultimaker 3 #11
2017-09-05 10:38:12,579 - ERROR - UM.Logger.logException [80]: Traceback (most recent call last):
2017-09-05 10:38:12,580 - ERROR - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\UM\Settings\ContainerRegistry.py", line 204, in load
2017-09-05 10:38:12,582 - ERROR - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\cura\Settings\CuraContainerStack.py", line 352, in deserialize
2017-09-05 10:38:12,583 - ERROR - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\UM\Settings\ContainerStack.py", line 357, in deserialize
2017-09-05 10:38:12,584 - ERROR - UM.Logger.logException [80]: Exception: When trying to deserialize Ultimaker 3 #11, we received an unknown ID (Ultimaker 3_settings #24) for container
2017-09-05 10:38:12,589 - ERROR - UM.Logger.logException [76]: Exception: Could not deserialize container ultimaker3_extruder_left #11
2017-09-05 10:38:12,592 - ERROR - UM.Logger.logException [80]: Traceback (most recent call last):
2017-09-05 10:38:12,593 - ERROR - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\UM\Settings\ContainerRegistry.py", line 204, in load
2017-09-05 10:38:12,594 - ERROR - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\cura\Settings\ExtruderStack.py", line 96, in deserialize
2017-09-05 10:38:12,596 - ERROR - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\cura\Settings\CuraContainerStack.py", line 352, in deserialize
2017-09-05 10:38:12,597 - ERROR - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\UM\Settings\ContainerStack.py", line 357, in deserialize
2017-09-05 10:38:12,598 - ERROR - UM.Logger.logException [80]: Exception: When trying to deserialize ultimaker3_extruder_left #11, we received an unknown ID (ultimaker3_extruder_left #2_settings #25) for container
2017-09-05 10:38:12,687 - INFO - cura.Settings.GlobalStack.addExtruder [81]: Extruder[ultimaker3_extruder_right #8] added to [Ultimaker 3 #8] at position [1]
2017-09-05 10:38:12,689 - WARNING - UM.Settings.ContainerStack.addMetaDataEntry [162]: Meta data with key machine was already added.
2017-09-05 10:38:12,694 - ERROR - UM.Logger.logException [76]: Exception: Could not deserialize container ultimaker3_extruder_right #11
2017-09-05 10:38:12,696 - ERROR - UM.Logger.logException [80]: Traceback (most recent call last):
2017-09-05 10:38:12,698 - ERROR - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\UM\Settings\ContainerRegistry.py", line 204, in load
2017-09-05 10:38:12,699 - ERROR - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\cura\Settings\ExtruderStack.py", line 96, in deserialize
2017-09-05 10:38:12,701 - ERROR - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\cura\Settings\CuraContainerStack.py", line 369, in deserialize
2017-09-05 10:38:12,702 - ERROR - UM.Logger.logException [80]: UM.Settings.ContainerStack.InvalidContainerStackError: Stack ultimaker3_extruder_right #11 does not have a definition!
2017-09-05 10:38:12,716 - INFO - cura.Settings.GlobalStack.addExtruder [81]: Extruder[ultimaker3_extruder_left #2] added to [Ultimaker 3] at position [0]
2017-09-05 10:38:12,718 - WARNING - UM.Settings.ContainerStack.addMetaDataEntry [162]: Meta data with key machine was already added.
2017-09-05 10:38:12,724 - INFO - cura.Settings.GlobalStack.addExtruder [81]: Extruder[ultimaker3_extruder_left #8] added to [Ultimaker 3 #8] at position [0]
2017-09-05 10:38:12,726 - WARNING - UM.Settings.ContainerStack.addMetaDataEntry [162]: Meta data with key machine was already added.
2017-09-05 10:38:12,733 - INFO - cura.Settings.GlobalStack.addExtruder [81]: Extruder[ultimaker3_extruder_right #2] added to [Ultimaker 3] at position [1]
2017-09-05 10:38:12,735 - WARNING - UM.Settings.ContainerStack.addMetaDataEntry [162]: Meta data with key machine was already added.
2017-09-05 10:38:12,738 - DEBUG - UM.Settings.ContainerRegistry.load [214]: Loading data into container registry took 11.914893388748169 seconds
2017-09-05 10:38:12,752 - DEBUG - UM.Controller.setActiveView [84]: Setting active view to SolidView
2017-09-05 10:38:15,338 - DEBUG - UM.Qt.Bindings.Theme.load [165]: Loading theme file: C:\Program Files\Cura 2.7\resources\themes\cura-dark\theme.json
2017-09-05 10:38:15,340 - DEBUG - UM.Qt.Bindings.Theme.load [165]: Loading theme file: C:\Program Files\Cura 2.7\resources\themes\cura\theme.json
2017-09-05 10:38:15,406 - DEBUG - UM.Qt.Bindings.Theme.load [232]: Loaded theme C:\Program Files\Cura 2.7\resources\themes\cura
2017-09-05 10:38:15,414 - DEBUG - UM.Qt.Bindings.Theme.load [232]: Loaded theme C:\Program Files\Cura 2.7\resources\themes\cura
2017-09-05 10:38:16,395 - DEBUG - OctoPrintPlugin.DiscoverOctoPrintAction._createAdditionalComponentsView [216]: Creating additional ui components for OctoPrint-connected printers.
2017-09-05 10:38:16,416 - DEBUG - UM3NetworkPrinting.DiscoverUM3Action._createAdditionalComponentsView [138]: Creating additional ui components for UM3.
2017-09-05 10:38:16,433 - DEBUG - UM3NetworkPrinting.DiscoverUM3Action.startDiscovery [38]: Starting printer discovery.
2017-09-05 10:38:16,480 - DEBUG - UM.Mesh.MeshData.approximateConvexHull [392]: approximateConvexHull(target_count=1024) Calculating 3D convex hull took 0.015640974044799805 seconds. 121 input vertices. 121 output vertices.
2017-09-05 10:38:20,797 - DEBUG - UM.Qt.QtRenderer._initialize [172]: Support for Vertex Array Objects: True
2017-09-05 10:38:20,804 - DEBUG - UM.View.GL.OpenGL.__init__ [85]: Initialized OpenGL subsystems.
2017-09-05 10:38:20,805 - DEBUG - UM.View.GL.OpenGL.__init__ [86]: OpenGL Version:  4.1.0 NVIDIA 382.05
2017-09-05 10:38:20,807 - DEBUG - UM.View.GL.OpenGL.__init__ [87]: OpenGL Vendor:   NVIDIA Corporation
2017-09-05 10:38:20,808 - DEBUG - UM.View.GL.OpenGL.__init__ [88]: OpenGL Renderer: GeForce GTX 745/PCIe/SSE2
2017-09-05 10:38:20,810 - DEBUG - UM.View.GL.ShaderProgram.load [55]: Loading shader file [C:\Program Files\Cura 2.7\resources\shaders\default.shader]...
2017-09-05 10:38:20,815 - DEBUG - UM.View.GL.ShaderProgram.load [55]: Loading shader file [C:\Program Files\Cura 2.7\resources\shaders\selection.shader]...
2017-09-05 10:38:20,817 - DEBUG - UM.View.GL.ShaderProgram.load [55]: Loading shader file [C:\Program Files\Cura 2.7\resources\shaders\default.shader]...
2017-09-05 10:38:20,820 - DEBUG - UM.View.GL.ShaderProgram.load [55]: Loading shader file [C:\Program Files\Cura 2.7\resources\shaders\composite.shader]...
2017-09-05 10:38:20,823 - DEBUG - UM.View.GL.ShaderProgram.load [55]: Loading shader file [C:\Program Files\Cura 2.7\resources\shaders\overhang.shader]...
2017-09-05 10:38:20,826 - DEBUG - UM.View.GL.ShaderProgram.load [55]: Loading shader file [C:\Program Files\Cura 2.7\resources\shaders\striped.shader]...
2017-09-05 10:38:20,833 - DEBUG - UM.View.GL.ShaderProgram.load [55]: Loading shader file [C:\Program Files\Cura 2.7\resources\shaders\default.shader]...
2017-09-05 10:38:20,836 - DEBUG - UM.View.GL.ShaderProgram.load [55]: Loading shader file [C:\Program Files\Cura 2.7\resources\shaders\grid.shader]...
2017-09-05 10:38:20,839 - DEBUG - UM.View.GL.ShaderProgram.load [55]: Loading shader file [C:\Program Files\Cura 2.7\resources\shaders\platform.shader]...
2017-09-05 10:38:31,447 - DEBUG - AutoSave.AutoSave._onTimeout [48]: Autosaving preferences, instances and profiles
2017-09-05 10:38:53,793 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_aa04] with type [variant]
2017-09-05 10:38:53,809 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_bb04] with type [variant]
2017-09-05 10:38:54,859 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_aa04] with type [variant]
2017-09-05 10:38:54,866 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_bb04] with type [variant]
2017-09-05 10:38:56,028 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [244]: Attempting to kill the engine process
2017-09-05 10:38:56,028 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [250]: Killing engine process
2017-09-05 10:38:56,030 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [253]: Engine process is killed. Received return code 1
2017-09-05 10:38:56,039 - WARNING - UM.Preferences.getValue [81]: Tried to get the value of non-existing setting cura/categories_expanded.
2017-09-05 10:38:56,039 - WARNING - 3MFReader.ThreeMFWorkspaceReader.read [418]: Workspace did not contain expanded categories. Leaving them unchanged
2017-09-05 10:38:56,041 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [462]: Workspace loading is checking definitions...
2017-09-05 10:38:56,042 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [474]: Workspace loading is checking materials...
2017-09-05 10:38:56,043 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [505]: Workspace loading is checking instance containers...
2017-09-05 10:38:56,069 - WARNING - UM.Settings.ContainerRegistry.addContainer [220]: Container of type <class 'UM.Settings.InstanceContainer.InstanceContainer'> and id Ultimaker 3 #11_current_settings already added
2017-09-05 10:38:56,075 - WARNING - UM.Settings.ContainerRegistry.addContainer [220]: Container of type <class 'UM.Settings.InstanceContainer.InstanceContainer'> and id ultimaker3_extruder_left #11_current_settings already added
2017-09-05 10:38:56,078 - WARNING - UM.Settings.ContainerRegistry.addContainer [220]: Container of type <class 'UM.Settings.InstanceContainer.InstanceContainer'> and id ultimaker3_extruder_right #11_current_settings already added
2017-09-05 10:38:56,079 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [626]: Workspace loading is checking stacks containers...
2017-09-05 10:38:56,093 - WARNING - UM.Settings.ContainerStack.setMetaDataEntry [170]: Meta data with key machine was not found. Unable to change.
2017-09-05 10:38:56,179 - INFO - cura.Settings.GlobalStack.addExtruder [81]: Extruder[ultimaker3_extruder_left #11] added to [Ultimaker 3 #11] at position [0]
2017-09-05 10:38:56,182 - WARNING - UM.Settings.ContainerStack.addMetaDataEntry [162]: Meta data with key machine was already added.
2017-09-05 10:38:56,189 - INFO - cura.Settings.GlobalStack.addExtruder [81]: Extruder[ultimaker3_extruder_right #11] added to [Ultimaker 3 #11] at position [1]
2017-09-05 10:38:56,191 - WARNING - UM.Settings.ContainerStack.addMetaDataEntry [162]: Meta data with key machine was already added.
2017-09-05 10:38:56,195 - WARNING - cura.Settings.ExtruderManager.registerExtruder [245]: Extruder [ultimaker3_extruder_left #11] has already been registered on machine [Ultimaker 3 #11], not doing anything
2017-09-05 10:38:56,198 - WARNING - cura.Settings.ExtruderManager.registerExtruder [245]: Extruder [ultimaker3_extruder_right #11] has already been registered on machine [Ultimaker 3 #11], not doing anything
2017-09-05 10:38:56,199 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [843]: Workspace loading is notifying rest of the code of changes...
2017-09-05 10:38:56,261 - WARNING - cura.Settings.GlobalStack.addExtruder [77]: Extruder [ultimaker3_extruder_left #11] has already been added to this stack [Ultimaker 3 #11]
2017-09-05 10:38:56,264 - WARNING - UM.Settings.ContainerStack.addMetaDataEntry [162]: Meta data with key machine was already added.
2017-09-05 10:38:56,266 - WARNING - cura.Settings.ExtruderManager.registerExtruder [245]: Extruder [ultimaker3_extruder_left #11] has already been registered on machine [Ultimaker 3 #11], not doing anything
2017-09-05 10:38:56,267 - WARNING - cura.Settings.GlobalStack.addExtruder [77]: Extruder [ultimaker3_extruder_right #11] has already been added to this stack [Ultimaker 3 #11]
2017-09-05 10:38:56,269 - WARNING - UM.Settings.ContainerStack.addMetaDataEntry [162]: Meta data with key machine was already added.
2017-09-05 10:38:56,271 - WARNING - cura.Settings.ExtruderManager.registerExtruder [245]: Extruder [ultimaker3_extruder_right #11] has already been registered on machine [Ultimaker 3 #11], not doing anything
2017-09-05 10:38:56,384 - DEBUG - UM.Mesh.MeshData.calculateNormalsFromVertices [425]: Calculating normals took 0.017511606216430664 seconds
2017-09-05 10:38:56,424 - DEBUG - UM.Mesh.MeshData.approximateConvexHull [392]: approximateConvexHull(target_count=1024) Calculating 3D convex hull took 0.03403902053833008 seconds. 16 input vertices. 16 output vertices.
2017-09-05 10:38:56,435 - DEBUG - UM.FileHandler.ReadFileJob.run [63]: Loading file took 0.4 seconds
2017-09-05 10:38:57,829 - INFO - UM.Backend.Backend._onSocketError [202]: Backend crashed or closed.
2017-09-05 10:38:57,830 - DEBUG - UM.Backend.Backend._createSocket [214]: Previous socket existed. Closing that first.
2017-09-05 10:38:57,832 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [244]: Attempting to kill the engine process
2017-09-05 10:38:57,833 - DEBUG - UM.Backend.Backend._createSocket [214]: Previous socket existed. Closing that first.
2017-09-05 10:38:59,612 - INFO - cura.CuraApplication.deleteAll [958]: Clearing scene
2017-09-05 10:38:59,990 - DEBUG - UM.Mesh.MeshData.approximateConvexHull [392]: approximateConvexHull(target_count=1024) Calculating 3D convex hull took 0.025516748428344727 seconds. 121 input vertices. 121 output vertices.
2017-09-05 10:38:59,993 - DEBUG - UM.Backend.Backend._logSocketState [174]: Socket state changed to Listening
2017-09-05 10:39:00,049 - INFO - UM.Backend.Backend.startEngine [75]: Started engine process: C:\Program Files\Cura 2.7\CuraEngine.exe
2017-09-05 10:39:00,050 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] Calling engine with: ['C:\\Program Files\\Cura 2.7\\CuraEngine.exe', 'connect', '127.0.0.1:49674', '-j', 'C:\\Program Files\\Cura 2.7\\resources\\definitions\\fdmprinter.def.json', '']
2017-09-05 10:39:00,093 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:00,095 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] Cura_SteamEngine version DEV
2017-09-05 10:39:00,097 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] Copyright (C) 2014 David Braam
2017-09-05 10:39:00,099 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:00,100 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] This program is free software: you can redistribute it and/or modify
2017-09-05 10:39:00,103 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] it under the terms of the GNU Affero General Public License as published by
2017-09-05 10:39:00,106 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] the Free Software Foundation, either version 3 of the License, or
2017-09-05 10:39:00,108 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] (at your option) any later version.
2017-09-05 10:39:00,110 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:00,114 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] This program is distributed in the hope that it will be useful,
2017-09-05 10:39:00,117 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] but WITHOUT ANY WARRANTY; without even the implied warranty of
2017-09-05 10:39:00,120 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
2017-09-05 10:39:00,123 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] GNU Affero General Public License for more details.
2017-09-05 10:39:00,127 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:00,128 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] You should have received a copy of the GNU Affero General Public License
2017-09-05 10:39:00,130 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] along with this program.  If not, see <http://www.gnu.org/licenses/>.
2017-09-05 10:39:02,119 - DEBUG - UM.Backend.Backend._logSocketState [178]: Socket state changed to Connected
2017-09-05 10:39:02,121 - DEBUG - UM.Backend.Backend._onSocketStateChanged [168]: Backend connected on port 49674
2017-09-05 10:39:03,773 - DEBUG - UM.View.GL.ShaderProgram.load [55]: Loading shader file [C:\Program Files\Cura 2.7\resources\shaders\transparent_object.shader]...
2017-09-05 10:39:08,735 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_bb04] with type [variant]
2017-09-05 10:39:08,750 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_aa04] with type [variant]
2017-09-05 10:39:09,959 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_bb04] with type [variant]
2017-09-05 10:39:09,968 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_aa04] with type [variant]
2017-09-05 10:39:11,181 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [244]: Attempting to kill the engine process
2017-09-05 10:39:11,181 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [250]: Killing engine process
2017-09-05 10:39:11,183 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [253]: Engine process is killed. Received return code 1
2017-09-05 10:39:11,206 - WARNING - UM.Preferences.getValue [81]: Tried to get the value of non-existing setting cura/categories_expanded.
2017-09-05 10:39:11,209 - WARNING - 3MFReader.ThreeMFWorkspaceReader.read [418]: Workspace did not contain expanded categories. Leaving them unchanged
2017-09-05 10:39:11,210 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [462]: Workspace loading is checking definitions...
2017-09-05 10:39:11,211 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [474]: Workspace loading is checking materials...
2017-09-05 10:39:11,212 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [505]: Workspace loading is checking instance containers...
2017-09-05 10:39:11,233 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [626]: Workspace loading is checking stacks containers...
2017-09-05 10:39:11,354 - WARNING - cura.Settings.GlobalStack.addExtruder [77]: Extruder [ultimaker3_extruder_right #8] has already been added to this stack [Ultimaker 3 #8]
2017-09-05 10:39:11,376 - WARNING - UM.Settings.ContainerStack.addMetaDataEntry [162]: Meta data with key machine was already added.
2017-09-05 10:39:11,392 - WARNING - cura.Settings.ExtruderManager.registerExtruder [245]: Extruder [ultimaker3_extruder_right #8] has already been registered on machine [Ultimaker 3 #8], not doing anything
2017-09-05 10:39:11,404 - WARNING - cura.Settings.GlobalStack.addExtruder [77]: Extruder [ultimaker3_extruder_left #8] has already been added to this stack [Ultimaker 3 #8]
2017-09-05 10:39:11,407 - WARNING - UM.Settings.ContainerStack.addMetaDataEntry [162]: Meta data with key machine was already added.
2017-09-05 10:39:11,408 - WARNING - cura.Settings.ExtruderManager.registerExtruder [245]: Extruder [ultimaker3_extruder_left #8] has already been registered on machine [Ultimaker 3 #8], not doing anything
2017-09-05 10:39:11,410 - WARNING - cura.Settings.ExtruderManager.registerExtruder [245]: Extruder [ultimaker3_extruder_right #8] has already been registered on machine [Ultimaker 3 #8], not doing anything
2017-09-05 10:39:11,411 - WARNING - cura.Settings.ExtruderManager.registerExtruder [245]: Extruder [ultimaker3_extruder_left #8] has already been registered on machine [Ultimaker 3 #8], not doing anything
2017-09-05 10:39:11,411 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [843]: Workspace loading is notifying rest of the code of changes...
2017-09-05 10:39:11,511 - INFO - UM.Backend.Backend._onSocketError [202]: Backend crashed or closed.
2017-09-05 10:39:11,513 - DEBUG - UM.Backend.Backend._createSocket [214]: Previous socket existed. Closing that first.
2017-09-05 10:39:11,514 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [244]: Attempting to kill the engine process
2017-09-05 10:39:11,517 - DEBUG - UM.Backend.Backend._createSocket [214]: Previous socket existed. Closing that first.
2017-09-05 10:39:11,747 - DEBUG - UM.Mesh.MeshData.calculateNormalsFromVertices [425]: Calculating normals took 0.012007951736450195 seconds
2017-09-05 10:39:11,904 - DEBUG - UM.Mesh.MeshData.approximateConvexHull [392]: approximateConvexHull(target_count=1024) Calculating 3D convex hull took 0.1526947021484375 seconds. 43 input vertices. 43 output vertices.
2017-09-05 10:39:11,909 - DEBUG - UM.FileHandler.ReadFileJob.run [63]: Loading file took 0.7 seconds
2017-09-05 10:39:13,952 - DEBUG - UM.Backend.Backend._logSocketState [174]: Socket state changed to Listening
2017-09-05 10:39:14,190 - INFO - UM.Backend.Backend.startEngine [75]: Started engine process: C:\Program Files\Cura 2.7\CuraEngine.exe
2017-09-05 10:39:14,197 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] Calling engine with: ['C:\\Program Files\\Cura 2.7\\CuraEngine.exe', 'connect', '127.0.0.1:49674', '-j', 'C:\\Program Files\\Cura 2.7\\resources\\definitions\\fdmprinter.def.json', '']
2017-09-05 10:39:14,207 - INFO - cura.CuraApplication.deleteAll [958]: Clearing scene
2017-09-05 10:39:14,253 - DEBUG - UM.Mesh.MeshData.approximateConvexHull [392]: approximateConvexHull(target_count=1024) Calculating 3D convex hull took 0.02300739288330078 seconds. 121 input vertices. 121 output vertices.
2017-09-05 10:39:14,287 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:14,289 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] Cura_SteamEngine version DEV
2017-09-05 10:39:14,292 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] Copyright (C) 2014 David Braam
2017-09-05 10:39:14,294 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:14,296 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] This program is free software: you can redistribute it and/or modify
2017-09-05 10:39:14,298 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] it under the terms of the GNU Affero General Public License as published by
2017-09-05 10:39:14,300 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] the Free Software Foundation, either version 3 of the License, or
2017-09-05 10:39:14,302 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] (at your option) any later version.
2017-09-05 10:39:14,304 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:14,305 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] This program is distributed in the hope that it will be useful,
2017-09-05 10:39:14,308 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] but WITHOUT ANY WARRANTY; without even the implied warranty of
2017-09-05 10:39:14,309 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
2017-09-05 10:39:14,311 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] GNU Affero General Public License for more details.
2017-09-05 10:39:14,312 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:14,314 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] You should have received a copy of the GNU Affero General Public License
2017-09-05 10:39:14,316 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] along with this program.  If not, see <http://www.gnu.org/licenses/>.
2017-09-05 10:39:16,514 - DEBUG - UM.Backend.Backend._logSocketState [178]: Socket state changed to Connected
2017-09-05 10:39:16,516 - DEBUG - UM.Backend.Backend._onSocketStateChanged [168]: Backend connected on port 49674
2017-09-05 10:39:29,034 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_aa04] with type [variant]
2017-09-05 10:39:29,043 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_bb04] with type [variant]
2017-09-05 10:39:30,183 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_aa04] with type [variant]
2017-09-05 10:39:30,191 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_bb04] with type [variant]
2017-09-05 10:39:33,371 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [244]: Attempting to kill the engine process
2017-09-05 10:39:33,371 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [250]: Killing engine process
2017-09-05 10:39:33,373 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [253]: Engine process is killed. Received return code 1
2017-09-05 10:39:33,385 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [462]: Workspace loading is checking definitions...
2017-09-05 10:39:33,386 - INFO - UM.Backend.Backend._onSocketError [202]: Backend crashed or closed.
2017-09-05 10:39:33,387 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [474]: Workspace loading is checking materials...
2017-09-05 10:39:33,388 - DEBUG - UM.Backend.Backend._createSocket [214]: Previous socket existed. Closing that first.
2017-09-05 10:39:33,389 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [505]: Workspace loading is checking instance containers...
2017-09-05 10:39:33,409 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [244]: Attempting to kill the engine process
2017-09-05 10:39:33,415 - DEBUG - UM.Backend.Backend._createSocket [214]: Previous socket existed. Closing that first.
2017-09-05 10:39:33,416 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [626]: Workspace loading is checking stacks containers...
2017-09-05 10:39:33,424 - WARNING - UM.Settings.ContainerStack.addMetaDataEntry [162]: Meta data with key network_authentication_id was already added.
2017-09-05 10:39:33,429 - WARNING - UM.Settings.ContainerStack.addMetaDataEntry [162]: Meta data with key network_authentication_key was already added.
2017-09-05 10:39:33,516 - WARNING - cura.Settings.GlobalStack.addExtruder [77]: Extruder [ultimaker3_extruder_left #11] has already been added to this stack [Ultimaker 3 #11]
2017-09-05 10:39:33,533 - WARNING - UM.Settings.ContainerStack.addMetaDataEntry [162]: Meta data with key machine was already added.
2017-09-05 10:39:33,545 - WARNING - cura.Settings.ExtruderManager.registerExtruder [245]: Extruder [ultimaker3_extruder_left #11] has already been registered on machine [Ultimaker 3 #11], not doing anything
2017-09-05 10:39:33,560 - WARNING - UM.Logger.logException [76]: Exception: We failed to serialize the stack. Trying to clean up.
2017-09-05 10:39:33,595 - WARNING - UM.Logger.logException [80]: Traceback (most recent call last):
2017-09-05 10:39:33,599 - WARNING - UM.Logger.logException [80]:   File "C:\Program Files\Cura 2.7\plugins\3MFReader\ThreeMFWorkspaceReader.py", line 700, in read
2017-09-05 10:39:33,601 - WARNING - UM.Logger.logException [80]:     stack = self._overrideExtruderStack(global_stack, extruder_file_content)
2017-09-05 10:39:33,609 - WARNING - UM.Logger.logException [80]:   File "C:\Program Files\Cura 2.7\plugins\3MFReader\ThreeMFWorkspaceReader.py", line 385, in _overrideExtruderStack
2017-09-05 10:39:33,611 - WARNING - UM.Logger.logException [80]:     extruder_stack.deserialize(extruder_file_content)
2017-09-05 10:39:33,613 - WARNING - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\cura\Settings\ExtruderStack.py", line 96, in deserialize
2017-09-05 10:39:33,614 - WARNING - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\cura\Settings\CuraContainerStack.py", line 352, in deserialize
2017-09-05 10:39:33,616 - WARNING - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\UM\Settings\ContainerStack.py", line 357, in deserialize
2017-09-05 10:39:33,618 - WARNING - UM.Logger.logException [80]: Exception: When trying to deserialize ultimaker3_extruder_right #11, we received an unknown ID (um3_bb0.4_ABS_Fast_print) for container
2017-09-05 10:39:41,985 - DEBUG - UM.Settings.ContainerRegistry.removeContainer [248]: Removed container Ultimaker 3_settings #24
2017-09-05 10:39:41,989 - DEBUG - UM.Settings.ContainerRegistry.removeContainer [248]: Removed container ultimaker3_extruder_left #2_settings #25
2017-09-05 10:39:41,993 - DEBUG - UM.Settings.ContainerRegistry.removeContainer [248]: Removed container ultimaker3_extruder_right #2_settings #25
2017-09-05 10:39:41,995 - DEBUG - UM.FileHandler.ReadFileJob.run [63]: Loading file took 8.6 seconds
2017-09-05 10:39:42,367 - DEBUG - UM.Backend.Backend._logSocketState [174]: Socket state changed to Listening
2017-09-05 10:39:42,384 - INFO - UM.Backend.Backend.startEngine [75]: Started engine process: C:\Program Files\Cura 2.7\CuraEngine.exe
2017-09-05 10:39:42,385 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] Calling engine with: ['C:\\Program Files\\Cura 2.7\\CuraEngine.exe', 'connect', '127.0.0.1:49674', '-j', 'C:\\Program Files\\Cura 2.7\\resources\\definitions\\fdmprinter.def.json', '']
2017-09-05 10:39:42,417 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:42,419 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] Cura_SteamEngine version DEV
2017-09-05 10:39:42,422 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] Copyright (C) 2014 David Braam
2017-09-05 10:39:42,424 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:42,426 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] This program is free software: you can redistribute it and/or modify
2017-09-05 10:39:42,427 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] it under the terms of the GNU Affero General Public License as published by
2017-09-05 10:39:42,429 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] the Free Software Foundation, either version 3 of the License, or
2017-09-05 10:39:42,431 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] (at your option) any later version.
2017-09-05 10:39:42,432 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:42,434 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] This program is distributed in the hope that it will be useful,
2017-09-05 10:39:42,436 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] but WITHOUT ANY WARRANTY; without even the implied warranty of
2017-09-05 10:39:42,438 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
2017-09-05 10:39:42,439 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] GNU Affero General Public License for more details.
2017-09-05 10:39:42,441 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:42,443 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] You should have received a copy of the GNU Affero General Public License
2017-09-05 10:39:42,444 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] along with this program.  If not, see <http://www.gnu.org/licenses/>.
2017-09-05 10:39:45,011 - DEBUG - AutoSave.AutoSave._onTimeout [48]: Autosaving preferences, instances and profiles
2017-09-05 10:39:45,182 - DEBUG - UM.Backend.Backend._logSocketState [178]: Socket state changed to Connected
2017-09-05 10:39:45,183 - DEBUG - UM.Backend.Backend._onSocketStateChanged [168]: Backend connected on port 49674
2017-09-05 10:39:54,130 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_bb04] with type [variant]
2017-09-05 10:39:54,146 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_aa04] with type [variant]
2017-09-05 10:39:55,262 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_bb04] with type [variant]
2017-09-05 10:39:55,269 - WARNING - 3MFReader.ThreeMFWorkspaceReader.preRead [238]: Ignoring instance container [ultimaker3_aa04] with type [variant]
2017-09-05 10:39:56,481 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [244]: Attempting to kill the engine process
2017-09-05 10:39:56,481 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [250]: Killing engine process
2017-09-05 10:39:56,483 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [253]: Engine process is killed. Received return code 1
2017-09-05 10:39:56,490 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [462]: Workspace loading is checking definitions...
2017-09-05 10:39:56,491 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [474]: Workspace loading is checking materials...
2017-09-05 10:39:56,491 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [505]: Workspace loading is checking instance containers...
2017-09-05 10:39:56,516 - DEBUG - 3MFReader.ThreeMFWorkspaceReader.read [626]: Workspace loading is checking stacks containers...
2017-09-05 10:39:56,524 - WARNING - UM.Settings.ContainerStack.addMetaDataEntry [162]: Meta data with key network_authentication_id was already added.
2017-09-05 10:39:56,531 - WARNING - UM.Settings.ContainerStack.addMetaDataEntry [162]: Meta data with key network_authentication_key was already added.
2017-09-05 10:39:56,607 - WARNING - UM.Logger.logException [76]: Exception: We failed to serialize the stack. Trying to clean up.
2017-09-05 10:39:56,611 - WARNING - UM.Logger.logException [80]: Traceback (most recent call last):
2017-09-05 10:39:56,613 - WARNING - UM.Logger.logException [80]:   File "C:\Program Files\Cura 2.7\plugins\3MFReader\ThreeMFWorkspaceReader.py", line 700, in read
2017-09-05 10:39:56,618 - WARNING - UM.Logger.logException [80]:     stack = self._overrideExtruderStack(global_stack, extruder_file_content)
2017-09-05 10:39:56,620 - WARNING - UM.Logger.logException [80]:   File "C:\Program Files\Cura 2.7\plugins\3MFReader\ThreeMFWorkspaceReader.py", line 385, in _overrideExtruderStack
2017-09-05 10:39:56,621 - WARNING - UM.Logger.logException [80]:     extruder_stack.deserialize(extruder_file_content)
2017-09-05 10:39:56,623 - WARNING - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\cura\Settings\ExtruderStack.py", line 96, in deserialize
2017-09-05 10:39:56,624 - WARNING - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\cura\Settings\CuraContainerStack.py", line 352, in deserialize
2017-09-05 10:39:56,631 - WARNING - UM.Logger.logException [80]:   File "D:\2.7\build\inst\lib\python3.5\site-packages\UM\Settings\ContainerStack.py", line 357, in deserialize
2017-09-05 10:39:56,632 - WARNING - UM.Logger.logException [80]: Exception: When trying to deserialize ultimaker3_extruder_right #11, we received an unknown ID (um3_bb0.4_ABS_Fast_print) for container
2017-09-05 10:39:56,664 - DEBUG - UM.Settings.ContainerRegistry.removeContainer [248]: Removed container Ultimaker 3_settings #23
2017-09-05 10:39:56,668 - DEBUG - UM.Settings.ContainerRegistry.removeContainer [248]: Removed container ultimaker3_extruder_right #2_settings #24
2017-09-05 10:39:56,672 - DEBUG - UM.Settings.ContainerRegistry.removeContainer [248]: Removed container ultimaker3_extruder_left #2_settings #24
2017-09-05 10:39:56,674 - DEBUG - UM.FileHandler.ReadFileJob.run [63]: Loading file took 0.2 seconds
2017-09-05 10:39:57,016 - INFO - UM.Backend.Backend._onSocketError [202]: Backend crashed or closed.
2017-09-05 10:39:57,017 - DEBUG - UM.Backend.Backend._createSocket [214]: Previous socket existed. Closing that first.
2017-09-05 10:39:57,018 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [244]: Attempting to kill the engine process
2017-09-05 10:39:57,020 - DEBUG - UM.Backend.Backend._createSocket [214]: Previous socket existed. Closing that first.
2017-09-05 10:39:57,066 - DEBUG - UM.Backend.Backend._logSocketState [174]: Socket state changed to Listening
2017-09-05 10:39:57,095 - INFO - UM.Backend.Backend.startEngine [75]: Started engine process: C:\Program Files\Cura 2.7\CuraEngine.exe
2017-09-05 10:39:57,097 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] Calling engine with: ['C:\\Program Files\\Cura 2.7\\CuraEngine.exe', 'connect', '127.0.0.1:49674', '-j', 'C:\\Program Files\\Cura 2.7\\resources\\definitions\\fdmprinter.def.json', '']
2017-09-05 10:39:57,126 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:57,128 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] Cura_SteamEngine version DEV
2017-09-05 10:39:57,130 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] Copyright (C) 2014 David Braam
2017-09-05 10:39:57,132 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:57,134 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] This program is free software: you can redistribute it and/or modify
2017-09-05 10:39:57,135 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] it under the terms of the GNU Affero General Public License as published by
2017-09-05 10:39:57,137 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] the Free Software Foundation, either version 3 of the License, or
2017-09-05 10:39:57,138 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] (at your option) any later version.
2017-09-05 10:39:57,140 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:57,141 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] This program is distributed in the hope that it will be useful,
2017-09-05 10:39:57,143 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] but WITHOUT ANY WARRANTY; without even the implied warranty of
2017-09-05 10:39:57,144 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
2017-09-05 10:39:57,145 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] GNU Affero General Public License for more details.
2017-09-05 10:39:57,147 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] 
2017-09-05 10:39:57,149 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] You should have received a copy of the GNU Affero General Public License
2017-09-05 10:39:57,151 - DEBUG - UM.Backend.Backend._backendLog [93]: [Backend] along with this program.  If not, see <http://www.gnu.org/licenses/>.
2017-09-05 10:39:59,297 - DEBUG - UM.Backend.Backend._logSocketState [178]: Socket state changed to Connected
2017-09-05 10:39:59,299 - DEBUG - UM.Backend.Backend._onSocketStateChanged [168]: Backend connected on port 49674
2017-09-05 10:40:07,753 - DEBUG - AutoSave.AutoSave._onTimeout [48]: Autosaving preferences, instances and profiles
2017-09-05 10:40:19,755 - DEBUG - UM.Qt.QtApplication.windowClosed [267]: Shutting down cura
2017-09-05 10:40:19,802 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [244]: Attempting to kill the engine process
2017-09-05 10:40:19,802 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [250]: Killing engine process
2017-09-05 10:40:19,802 - DEBUG - CuraEngineBackend.CuraEngineBackend._terminate [253]: Engine process is killed. Received return code 1

[LipuFei]

@nickfrats If you don't mind, could you share that failed project file so we can investigate? Thank you.

[nickfrats]

Unfortunately I'm not able to share the files as they contain client sensitive information. I've gone back and tried opening all my old files from 2.6 and it seems some of them do open while others won't. There aren't any that don't open that I can share with you. My guess is that some of the project files are corrupted on my end. Thanks everyone for your help!

[Ghostkeeper]

Exception: When trying to deserialize ultimaker3_extruder_right #11, we received an unknown ID (um3_bb0.4_ABS_Fast_print) for container

This is a weird error since the profile um3_bb0.4_ABS_Fast_print is built-in...