let picker = UIDocumentPickerViewController(documentTypes: ["public.text"], in: .import) notice that you should use .import and then the file will copy to you tmp/${bundle id}-Inbox/ folder, then you can do anything to it

Some days ago, I just change the apple id which used to singed with testflight successful, and then it ok. Some other people told me, can update device to latest system, or just close wifi, open testflight and then open wifi, to fixed. You can have a try

Same error with Xcode 15 rc and iOS 17 RC Failed to install the app on the device. Domain: com.apple.dt.CoreDeviceError Code: 3002 User Info: { DVTErrorCreationDateKey = "2023-09-19 05:55:29 +0000"; IDERunOperationFailingWorker = IDEInstallCoreDeviceWorker; NSURL = "file:///Users/zhangheng/Library/Developer/Xcode/DerivedData/***.app"; } -- Could not get service com.apple.remote.installcoordination_proxy (make sure the client is entitled correctly), Error: 83 (Device error) Domain: IXRemoteErrorDomain Code: 5 Failure Reason: Unhandled error domain IXRemoteErrorDomain, code 5 User Info: { FunctionName = "_RemoteInstallCoordinationServiceForDevice"; SourceFileLine = 69; } -- Event Metadata: com.apple.dt.IDERunOperationWorkerFinished : { "device_isCoreDevice" = 1; "device_model" = "iPhone14,2"; "device_osBuild" = "17.0 (21A329)"; "device_platform" = "com.apple.platform.iphoneos"; "dvt_coredevice_version" = "348.1"; "dvt_mobiledevice_version" = "1643.2.4"; "launchSession_schemeCommand" = Run; "launchSession_state" = 1; "launchSession_targetArch" = arm64; "operation_duration_ms" = 121449; "operation_errorCode" = 5; "operation_errorDomain" = "com.apple.dt.CoreDeviceError.3002.IXRemoteErrorDomain"; "operation_errorWorker" = IDEInstallCoreDeviceWorker; "operation_name" = IDERunOperationWorkerGroup; "param_debugger_attachToExtensions" = 0; "param_debugger_attachToXPC" = 1; "param_debugger_type" = 3; "param_destination_isProxy" = 0; "param_destination_platform" = "com.apple.platform.iphoneos"; "param_diag_MainThreadChecker_stopOnIssue" = 0; "param_diag_MallocStackLogging_enableDuringAttach" = 0; "param_diag_MallocStackLogging_enableForXPC" = 1; "param_diag_allowLocationSimulation" = 1; "param_diag_checker_tpc_enable" = 1; "param_diag_gpu_frameCapture_enable" = 0; "param_diag_gpu_shaderValidation_enable" = 0; "param_diag_gpu_validation_enable" = 0; "param_diag_memoryGraphOnResourceException" = 0; "param_diag_queueDebugging_enable" = 1; "param_diag_runtimeProfile_generate" = 0; "param_diag_sanitizer_asan_enable" = 0; "param_diag_sanitizer_tsan_enable" = 0; "param_diag_sanitizer_tsan_stopOnIssue" = 0; "param_diag_sanitizer_ubsan_stopOnIssue" = 0; "param_diag_showNonLocalizedStrings" = 0; "param_diag_viewDebugging_enabled" = 1; "param_diag_viewDebugging_insertDylibOnLaunch" = 1; "param_install_style" = 0; "param_launcher_UID" = 2; "param_launcher_allowDeviceSensorReplayData" = 0; "param_launcher_kind" = 0; "param_launcher_style" = 99; "param_launcher_substyle" = 8192; "param_runnable_appExtensionHostRunMode" = 0; "param_runnable_productType" = "com.apple.product-type.application"; "param_structuredConsoleMode" = 1; "param_testing_launchedForTesting" = 0; "param_testing_suppressSimulatorApp" = 0; "param_testing_usingCLI" = 0; "sdk_canonicalName" = "iphoneos17.0"; "sdk_osVersion" = "17.0"; "sdk_variant" = iphoneos; } -- System Information macOS Version 13.5.2 (Build 22G91) Xcode 15.0 (22265) (Build 15A240d) Timestamp: 2023-09-19T13:55:29+08:00

I have the same error, and after tried all way of the replies, still not working, when apple resolve this problem? And my Xcode is the latest Version 15.3 (15E204a)

I have the same issue, and the testflight page crash is not all, only shows someone feedback, it's really painful

I resolved it, just set the filter "All Products" to "iOS App", then it will shows as you expected