Could not import Meteor package into the client: export 'ObserveMultiplexer' is undefined

[brianlukoff]

In trying to run the vue example app under Meteor 3.1, I'm getting this error on startup:

[meteor-vite] ⚠️ UndefinedExportException: Could not import Meteor package into the client: export 'ObserveMultiplexer' is undefined
⚡ Affected package: meteor/mongo
⚡ Export name: { ObserveMultiplexer }
⚡ Vite Request ID: meteor/mongo

[JorgenVatle]

Shouldn't cause any issues apart from the warning message. Got it in my own apps, But definitely worth having an open issue for as I haven't had the chance to look more into just it yet.

If you are seeing issues do let me know and I'll get a fix out for you as soon as I can. Details and potentially a repository to reproduce the issue would be handy as well if possible.

[brianlukoff]

Thanks! I'm getting another error in the UI when I try to run the sample app -- I assumed it was related to the above but maybe it is something else?

[JorgenVatle]

Oh, I should probably remove that. It's intentionally causing an error there to verify that validation is working correctly. You can just remove any imports from meteor/test:stub-validation.