Does the DeviceSupport/ solution still work on the new Xcode 26.0 and macOS Tahoe 26.0?
I'm currently experiencing issues specifically with the iOS 12.4 support files for my iPad running iOS 12.5.7 after upgrading to the new macOS.
I must say the support files ran perfectly on Xcode 18.6 on the previous macOS, but even downgrading Xcode to 18.6 now has no effect.
The DeviceSupport files seem to be recognized perfectly in both scenarios, debug symbols are downloaded and installed, but running the app on the device instantly shuts the app down.
If this is unrelated to the support files, feel free to close this issue.
Could not launch “myapp”
Domain: IDEDebugSessionErrorDomain
Code: 3
Failure Reason: Cannot launch '/private/var/containers/Bundle/Application/D1FF1460-27F6-4FA0-A4F1-A30D205D1148/myapp.app': Unspecified
User Info: {
DVTErrorCreationDateKey = "2025-09-17 13:48:39 +0000";
DVTRadarComponentKey = 855031;
IDERunOperationFailingWorker = DBGLLDBLauncher;
RawUnderlyingErrorMessage = "Cannot launch '/private/var/containers/Bundle/Application/D1FF1460-27F6-4FA0-A4F1-A30D205D1148/myapp.app': Unspecified";
}
--
Event Metadata: com.apple.dt.IDERunOperationWorkerFinished : {
"device_identifier" = cd9a4c1e3cba142517806da5e4305eb4960234fd;
"device_isWireless" = 1;
"device_model" = "iPad4,4";
"device_osBuild" = "12.5.7 (16H81)";
"device_osBuild_monotonic" = 1607008100;
"device_os_variant" = 1;
"device_platform" = "com.apple.platform.iphoneos";
"device_platform_family" = 2;
"device_reality" = 1;
"device_thinningType" = "iPad4,4";
"device_transport" = 2;
"launchSession_schemeCommand" = Run;
"launchSession_schemeCommand_enum" = 1;
"launchSession_targetArch" = arm64;
"launchSession_targetArch_enum" = 6;
"operation_duration_ms" = 13963;
"operation_errorCode" = 3;
"operation_errorDomain" = IDEDebugSessionErrorDomain;
"operation_errorWorker" = DBGLLDBLauncher;
"operation_error_reportable" = 1;
"operation_name" = IDEiPhoneRunOperationWorkerGroup;
"param_consoleMode" = 1;
"param_debugger_attachToExtensions" = 0;
"param_debugger_attachToXPC" = 0;
"param_debugger_type" = 5;
"param_destination_isProxy" = 0;
"param_destination_platform" = "com.apple.platform.iphoneos";
"param_diag_MTE_enable" = 0;
"param_diag_MainThreadChecker_stopOnIssue" = 0;
"param_diag_MallocStackLogging_enableDuringAttach" = 0;
"param_diag_MallocStackLogging_enableForXPC" = 1;
"param_diag_allowLocationSimulation" = 0;
"param_diag_checker_mtc_enable" = 0;
"param_diag_checker_tpc_enable" = 1;
"param_diag_gpu_frameCapture_enable" = 0;
"param_diag_gpu_shaderValidation_enable" = 0;
"param_diag_gpu_validation_enable" = 1;
"param_diag_guardMalloc_enable" = 0;
"param_diag_memoryGraphOnResourceException" = 0;
"param_diag_queueDebugging_enable" = 0;
"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_enable" = 0;
"param_diag_sanitizer_ubsan_stopOnIssue" = 0;
"param_diag_showNonLocalizedStrings" = 0;
"param_diag_viewDebugging_enabled" = 0;
"param_diag_viewDebugging_insertDylibOnLaunch" = 1;
"param_install_style" = 2;
"param_launcher_UID" = 2;
"param_launcher_allowDeviceSensorReplayData" = 0;
"param_launcher_kind" = 0;
"param_launcher_style" = 0;
"param_launcher_substyle" = 0;
"param_lldbVersion_component_idx_1" = 0;
"param_lldbVersion_monotonic" = 170300310002;
"param_runnable_appExtensionHostRunMode" = 0;
"param_runnable_productType" = "com.apple.product-type.application";
"param_testing_launchedForTesting" = 0;
"param_testing_suppressSimulatorApp" = 0;
"param_testing_usingCLI" = 0;
"sdk_canonicalName" = "iphoneos26.0";
"sdk_osVersion" = "26.0";
"sdk_platformID" = 2;
"sdk_variant" = iphoneos;
"sdk_version_monotonic" = 2300033900;
}
--
System Information
macOS Version 26.0 (Build 25A354)
Xcode 26.0 (24228) (Build 17A324)
Timestamp: 2025-09-17T15:48:39+02:00
Does the
DeviceSupport/solution still work on the new Xcode 26.0 and macOS Tahoe 26.0?I'm currently experiencing issues specifically with the iOS 12.4 support files for my iPad running iOS 12.5.7 after upgrading to the new macOS.
I must say the support files ran perfectly on Xcode 18.6 on the previous macOS, but even downgrading Xcode to 18.6 now has no effect.
The DeviceSupport files seem to be recognized perfectly in both scenarios, debug symbols are downloaded and installed, but running the app on the device instantly shuts the app down.
If this is unrelated to the support files, feel free to close this issue.