Widget_Simulator error 4

Question

bsolie OP

Created Mar ’25

Replies 3

Boosts 1

Participants 2

I am on MacOS 15.3.2, XCode 16.2

I have a MacOS app with app group and Widget that was working on Sonoma. I am aware of the App Group changes with Sequoia, and I think I have that right. The app runs fine. The widget refuses to load in the simulator and in the system. The simulator error I get is

Failed to load widget. The operation couldn't be completed. (WidgetKit_Simulator.WidgetDocument.Error error 4).

I am having trouble finding out what exactly error 4 means. Can anyone help?

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Answer 1

bsolie OP

Mar ’25

I turned on some more logging, and this what I am seeing:

Failed to get extension to fetch descriptor MyBundleID could not resolve URL while initializing a bundle record!

If that clears up anything for anyone.

0

Answer 2

Engineer OP

Apple

Mar ’25

Please file a bug report with sample project and sysdiagnose.

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Answer 3

bsolie OP

Mar ’25

Thanks, I will certainly do that, but I would like to understand what this error is supposed to be saying. It is pretty opaque.

0