ecore-glsp failing to run. eclipse.equinox.launcher is not found

[metadatadriven]

Hi - I am trying to get the eclipse-emfcloud/ecore-glsp running on Ubuntu 20.04 - the build.sh script runs ok, but when I go to start the app I'm getting an error looks like the eclipse.equinox.launcher is missing in the backend. Am I missing a step to initialise the backend before running in the client directory?

I'm running in a docker container so its a clean build with only Ubuntu/node/java/etc. installed with the ecore-glsp git cloned and built.

Any help appreciated!
Thanks

$ yarn start
yarn run v1.22.19
$ cd browser-app && yarn start
$ theia start --hostname=0.0.0.0 --ECORE_GLSP=5007 --root-dir=../workspace --startFromJar --plugins=local-dir:./plugins
Configuring to accept webviews on '^.+\.webview\..+$' hostname.
root INFO Configuration directory URI: 'file:///home/ubuntu/.theia'
root ERROR Could not initialize contribution Error: The eclipse.equinox.launcher is not found. 
    at Object.findEquinoxLauncher (/mnt/code/client/packages/theia-ecore/lib/node/equinox.js:19:15)
    at GLSPServerLauncher.startServer (/mnt/code/client/packages/theia-ecore/lib/node/glsp-server-launcher.js:40:43)
    at GLSPServerLauncher.initialize (/mnt/code/client/packages/theia-ecore/lib/node/glsp-server-launcher.js:32:18)
    at /mnt/code/client/node_modules/@theia/core/lib/node/backend-application.js:135:106
    at BackendApplication.measure (/mnt/code/client/node_modules/@theia/core/lib/node/backend-application.js:256:30)
    at BackendApplication.initialize (/mnt/code/client/node_modules/@theia/core/lib/node/backend-application.js:135:32)
root INFO Theia app listening on http://0.0.0.0:3000.
root WARN The local plugin referenced by local-dir:/home/ubuntu/.theia/plugins does not exist.
root WARN The local plugin referenced by local-dir:/home/ubuntu/.theia/extensions does not exist.
root INFO ModelServerBackendContribution: Starting modelserver from jar
root ERROR Uncaught Exception:  Error: The eclipse.equinox.launcher is not found. 
root ERROR Error: The eclipse.equinox.launcher is not found. 
    at Object.findEquinoxLauncher (/mnt/code/client/packages/theia-ecore/lib/node/equinox.js:19:15)
    at EcoreModelServerLauncher.startServer (/mnt/code/client/packages/theia-ecore/lib/node/ecore-model-server-launcher.js:26:43)
    at /mnt/code/client/node_modules/@eclipse-emfcloud/modelserver-theia/lib/node/model-server-backend-contribution.js:55:27
    at processTicksAndRejections (internal/process/task_queues.js:97:5)
root INFO PluginTheiaDirectoryHandler: accepting plugin with path /mnt/code/client/browser-app/plugins/vscode-builtin-json
root INFO Resolved "vscode-builtin-json" to a VS Code extension "json@1.48.2" with engines: { vscode: '0.10.x' }
root INFO PluginTheiaDirectoryHandler: accepting plugin with path /mnt/code/client/browser-app/plugins/vscode-builtin-json-language
root INFO Resolved "vscode-builtin-json-language" to a VS Code extension "json-language-features@1.48.2" with engines: { vscode: '0.10.x' }
root INFO Deploying backend plugin "json@1.48.2" from "/mnt/code/client/browser-app/plugins/vscode-builtin-json/extension"
root INFO Deploying backend plugin "json-language-features@1.48.2" from "/mnt/code/client/browser-app/plugins/vscode-builtin-json-language/extension/client/dist/node/jsonClientMain"
root INFO Deploy plugins list took: 25.2 ms

[ndoschek]

Hi @metadatadriven,

The backend build that is triggered by the build.sh should copy all necessary artifacts to client/packages/theia-ecore/build.
I.e.

Those product artifacts also contain the equinox launcher. Could you please check if those artifacts exist for you?
Perhaps you could also try to to only build the backend part again via build.sh -b.

HTH and please let me know if the issue persists,
Nina

PS: Please note that the @eclipse-emfcloud/ecore-glsp repository contains a demonstrator for showing an editor for Ecore models. Thus, we only focus on what’s relevant for the demonstration under a controlled environment, that means it is not up-to-date with its used frameworks. If you are interested in transforming this demonstrator into an adoptable state, e.g. by funding the development work or working on it yourself, please let us know! :)

[eneufeld]

Please reopen if issue still persists