Monaco-editor: "ReferenceWidget depends on UNKNOWN service IPeekViewService" error since 0.17

[ulrichb]

monaco-editor version: 0.17.1
Browser: Chrome / Firefox
OS: Win

Steps or JS usage snippet reproducing the issue:

Just open the Monaco Editor playground and hit Shift+F12 or Alt+F12 on a symbol.

Error in the browser console:

as text

simpleServices.js:206 Error: [createInstance] ReferenceWidget depends on UNKNOWN service IPeekViewService.
    at InstantiationService._createInstance (instantiationService.js:144)
    at InstantiationService.createInstance (instantiationService.js:118)
    at StandaloneReferencesController.ReferencesController.toggleWidget (referencesController.js:248)
    at ReferenceAction.run (referenceSearch.js:140)
    at ReferenceAction.EditorAction.runEditorCommand (editorExtensions.js:230)
    at editorExtensions.js:187
    at InstantiationService.invokeFunction (instantiationService.js:94)
    at StandaloneEditor.CodeEditorWidget.invokeWithinContext (codeEditorWidget.js:298)
    at ReferenceAction.EditorCommand.runCommand (editorExtensions.js:179)
    at handler (editorExtensions.js:101)
    at InstantiationService.invokeFunction (instantiationService.js:94)
    at StandaloneCommandService.executeCommand (simpleServices.js:260)
    at StandaloneKeybindingService.AbstractKeybindingService._doDispatch (abstractKeybindingService.js:195)
    at StandaloneKeybindingService.AbstractKeybindingService._dispatch (abstractKeybindingService.js:142)
    at HTMLDivElement.<anonymous> (simpleServices.js:287)

Both worked in Monaco Editor 0.16.2.

[AviVahl]

we experienced the same in our project, when upgrading to latest monaco-editor-core.
it appears the registry in monaco-editor-core/esm/vs/platform/instantiation/common/extensions.js is not being exported or registered to the InstantiationService.
In vscode, workbench.ts calls getServices() and registers them (in initServices()).

[ulrichb]

@mjbvz Could you maybe have a look at this? (Still broken in 0.17.1)

[ulrichb]

@AviVahl Thanks for info. Do you have any workaround?

[AviVahl]

We are using 0.16 until issue is resolved. No workaround from our end, as the service registration/initialization flow is quite complex.

[ulrichb]

Nice. Many, many thanks @jrieken !

[AviVahl]

Awesome. Thanks for the fix. Any chance for a patch release of monaco-editor/monaco-editor-core? :)

[ulrichb]

Pleeease release a new version containing the fix.