Missing commands prevents rendering a menu

[akosyakov]

I've got the following error:

Uncaught (in promise) Error: A command with id 'core.save' does not exist.
    at ActionMenuNode.get [as label] (http://localhost:3000/bundle.js:36121:23)
    at ActionMenuNode.get [as sortString] (http://localhost:3000/bundle.js:36137:46)
    at http://localhost:3000/bundle.js:36066:20
    at Array.sort (native)
    at CompositeMenuNode.addNode (http://localhost:3000/bundle.js:36065:24)
    at MenuModelRegistry.registerMenuAction (http://localhost:3000/bundle.js:35981:23)
    at CommonFrontendContribution.registerMenus (http://localhost:3000/bundle.js:23101:18)
    at MenuModelRegistry.onStart (http://localhost:3000/bundle.js:35966:25)
    at FrontendApplication.<anonymous> (http://localhost:3000/bundle.js:18058:36)
    at step (http://localhost:3000/bundle.js:17937:23)

We should handle it gracefully, report to a user and ensure that a menu item either not rendered or rendered as disabled.

[theBadT]

@akosyakov Hi, I'd like to have a look into the issue. Is there any more input available? like a scenario for reproduction?

[akosyakov]

You can build an extension which registers a menu via MenuContribution, but contributes an underlying command dynamically, for instance via calling another command.

[vince-fugnitto]

Closed thanks to #5894