Che: Intellij GWT Debug Error

[village-way]

Description

I want to debug IDE Extensions by follow this workflow, https://github.com/eclipse/che/wiki/Development-Workflow#debugging-che-ide-extensions

after many time attempt， i still get this error

i look up some similar in the issues, but still find an solution.

Here is my configuration

OS and version:
macos 10.12.6
jdk 1.8
maven 3.5.0
gwt 2.8.2

Diagnostics:

this is my start command
docker run -it -e CHE_HOST=192.168.65.3 -e CHE_MULTIUSER=true -v /var/run/docker.sock:/var/run/docker.sock -v /Users/devine/Downloads/webide-data:/data -v /Volumes/Data/IdeaProjects/WebIDE:/repo eclipse/che start --debug
this is my workspace page

[ghost]

@HiDevine here's more accurate docs https://www.eclipse.org/che/docs/ide-extensions-gwt.html#debugging-with-super-devmode

[village-way]

@eivantsov
according to the docs you provided, i execute this command
mvn gwt:codeserver -pl :che-ide-gwt-app -am -Dmaven.main.skip -Dmaven.resources.skip -Dche.dto.skip -Dskip-enforce -Dskip-validate-sources
this is the result

what do next, can i debug in the intellij

[village-way]

i can debug ide extension in chrome dev tool now, but i still can not debug in the intellij.
i can also see the change result, after compile the source.

[ghost]

In Chrome only

[village-way]

Thanks for you great help.
hope one day, i can debug in the intellij.
you can close this question.