Failed to Get Descriptors for Extensionbundleid

iOS Widget Extension: Failed to show Widget on running with widget extension scheme

Well, I finally figured it out and solved this problem.

Letter case turns out to be the culprit.

One thing I haven't mentioned is that my project contains a folder reference name "Plugins" to be packed into the bundle. It contains several JavaScript files used by the app.

Screenshot: How the file tree looks like

Then I noticed that in the "Build Phases" settings, the embedded app extensions are specified "PlugIns" as the default destination, which shares the same name with the "Plugins" folder listed in the "Copy Bundle Resources" if the letter case is ignored.

Screenshot: "Build Phases" settings

After exploring the build folder, I found that the widget extension was placed under the "Plugins" folder instead of the "PlugIns" one. When the widget extension is being launched, the "PlugIns" folder in the bundle is being looked up to find the .appex extension. The "PlugIns" folder does not exist but the "Plugins" one does in this scenario. And this can also explain why the app works but the extensions do not.

Renaming the folder to be included in the bundle solved my problem.

My widget doesn't seem to install onto my Xcode 12 simulator

Fixed! I did some poking and tried to run the preview canvas for my widget file, it gave me an error saying the preview couldn't be rendered.

Googled it up, found this answer and rebuilt and ran the widget extension again. It still gave this error, so I rebooted the iPhone simulator and voila! It works!

Thanks for the help, hope this helps someone down the road...

When i run app extension(Widget) in device.I got this error App installation failed

If your application bundle identifier is com.companyName.productName then your extension bundle identifier should be com.companyName.productName.extensionName

If you assign the bundle identifier in this way then your provisioning profile will work for both.

After Removing App Extension Still Get App Installation Failed Error- This app contains an app extension with an illegal bundle identifier

I had the same problem. Turns out that you just need to clean the project and the build folder with this shortcut command + option + shift + k

---

Related Topics