Designer in Eclipse can not handle frontend directory in different location with Lit components

[lordmikefin]

When 'frontend' directory is moved, then Designer can not handle Lit component within Lit component.
NOTE: Designer does not have same problem with Polymer components.

Steps to reproduce

My sample project:
skeleton-starter-flow-spring-frontend-moved.zip

1. Clone vaadin 14 starter project

   git clone https://github.com/vaadin/skeleton-starter-flow-spring.git
   cd skeleton-starter-flow-spring
   git checkout v14

2. Rename 'frontend' direcotry to 'frontend-moved'

   git mv frontend frontend-moved

3. Change frontend directory. Edit maven project file 'pom.xml'.
   Add 'frontendDirectory' -configuration

   <configuration>
       <frontendDirectory>${project.basedir}/frontend-moved</frontendDirectory>
   </configuration>
   

   Into 'vaadin-maven-plugin' in 'plugin' section.
   NOTE: The 'vaadin-maven-plugin' is in two sections 'build' and 'profiles'.
   End result sample:

       <plugin>
           <groupId>com.vaadin</groupId>
           <artifactId>vaadin-maven-plugin</artifactId>
           <version>${vaadin.version}</version>
           <configuration>
               <frontendDirectory>${project.basedir}/frontend-moved</frontendDirectory>
           </configuration>
       </plugin>
   

4. Import into Eclipse IDE
5. Create new Lit component 'lit-test-child'
6. Create new Lit component 'lit-test-parent'
7. Drag&Drop 'lit-test-child' into 'lit-test-parent'

Actual behavior

Designer does not show any content for child Lit component.

If "lit-test-parent" is reopened, then just white canvas is shown.
No content at all :(

Expected behavior

Designer should show 'lit-test-child' componet content within the 'lit-test-parent' component view.

IDE, Designer and OS version

IDE	Designer	Vaadin	OS
Eclipse 2021-12	4.6.14	14.8.6	Windows

[Theikk]

Problem behavior can be repeated on V23 as well.

IDE	Designer	Vaadin	OS
Version: 2019-09 R (4.13.0)	4.6.15	23.0.2	Windows 10

[anssit]

Confirmed: GET http://localhost:52962/project/frontend-moved/src/lit-test-child net::ERR_ABORTED 404 (Not Found)

[anssit]

Problem also with IntelliJ IDEA

[mshabarov]

@szolo could you please give a status of this issue? Do we have a patch?

[szolo]

Hello, new Designer version with a fix for this issue will be released soon. Designer will provide an option to specify any folder as a frontend folder via preferences. Thanks!

[szolo]

Hello @lordmikefin, we have just released Vaadin Designer 4.6.18.

There is a new preference setting "Front Folder" under "Vaadin Designer" preferences. Feel free to change it according to your needs. By default it is "frontend".