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