Get an error when use backgroundassets-debug command

I download the demo provided by WWDC 2023 Session 10108 "What’s new in Background Assets", and I configure all targets to my developer team for signing so I can run the application on my device. But I get an error when I use backgroundassets-debug command:

xcrun backgroundassets-debug --simulate --app-periodic-check --device-id 00008030-001631C036208XXX --app-bundle-id com.example.apple-samplecode.WWDC-Sessions8QQGK9DXXX

Error Log:

	backgroundassets.user	Unable to use persistent identifier to update application info. Falling back to bundle identifier lookup. (bundle identifier: com.example.apple-samplecode.WWDC-Sessions8QQGK9DJB9)

......

	backgroundassets.user	Failed to get extension process: Error Domain=com.apple.extensionKit.errorDomain Code=4 "Failed to aquire assertion for pid: 3091" UserInfo={NSLocalizedDescription=Failed to aquire assertion for pid: 3091}

......

	backgroundassets.user	Failed to get extension process: Error Domain=com.apple.extensionKit.errorDomain Code=4 "Failed to aquire assertion for pid: 3092" UserInfo={NSLocalizedDescription=Failed to aquire assertion for pid: 3092}

	backgroundassets.user	-[BAAgentCore downloadQueue:manifest:finishedWithFileURL:]_block_invoke, Failed to access extension for com.example.apple-samplecode.WWDC-Sessions8QQGK9DXXX.

	backgroundassets.user	Removing manifest download as extension did not handle manifest. BAManifestDownload (0x75cd44aa0): [ID:com.example.apple-samplecode.WWDC-Sessions8QQGK9DXXX.Manifest-3BE0D398-734D-4E12-90DD-EE943D6DCXXX, AppID:com.example.apple-samplecode.WWDC-Sessions8QQGK9DXXX, Necessity:Essential]

Any help will be gratefully appreciated

Sometime the error log like this:

I'd be happy to help, but there isn't enough information in the logs you shared to diagnose the issue. Can you please file a bug with Feedback Assistant from the iOS on which you're experiencing the issue?

Feedback Assistant will collect additional logs from your device. If you file the bug shortly after reproducing the issue, there should be enough information in those logs to help.

https://developer.apple.com/bug-reporting/

Get an error when use backgroundassets-debug command
 
 
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