[DONT_MERGE_YET][msbuild][mac][ios] bxc#58504: Fix referencing netstandard projects #2640
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rolfbjarne
approved these changes
Sep 11, 2017
radical
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I found an issue that needs to be fixed first. |
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Yes, we won't have permission to backport into 15.4 unless it's verified (by QA) in master. |
chamons
approved these changes
Sep 11, 2017
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Build failure |
Building a XI or XM (Modern) project that references a netstandard 2.0 project with msbuild fails because of a missing reference to `netstandard.dll`. AppDelegate.cs(21,52): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The reason is that XI and XM (Modern) projects have `$(TargetFrameworkIdentifier) != .NETFramework`, so targets from `Microsoft.NET.Build.Extensions` which provide ns2.0 support don't get imported. `ImplicitlyExpandNETStandardFacades` in particular, which would have added a reference to `netstandard.dll`. `netstandard.dll` gets included as part of the facades expanded by `ImplicitlyExpandDesignTimeFacades`, but this gets skipped if the project does not have a `System.Runtime` dependent reference. Instead, we want to expand the facades if any reference depends on `System.Runtime` OR `netstandard`. And for that we scan all the references for a `netstandard` dependency using the `GetDependsOnNETStandard` task. Partially fixes bxc #58504 .
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Opened a new PR against master: #2643 |
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Building a XI or XM (Modern) project that references a netstandard 2.0
project with msbuild fails because of a missing reference to
netstandard.dll.AppDelegate.cs(21,52): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'.
The reason is that XI and XM (Modern) projects have
$(TargetFrameworkIdentifier) != .NETFramework, so targets fromMicrosoft.NET.Build.Extensionswhich provide ns2.0 support don't getimported.
ImplicitlyExpandNETStandardFacadesin particular, whichwould have added a reference to
netstandard.dll.So, instead we duplicate that in XI/XM targets. Essentially, we need to
scan all the references for a
netstandarddependency (usingGetDependsOnNETStandardtask) and if found, add thenetstandard.dllreference.
Partially fixes bxc 58504.