Issues on iOS 26 beta

[simolus3]

Hi again! There seems to be some problems with iOS 26. I don't know if there is something related to you or maybe is Xcode. But since no other dependency we have in our main project causes it I wanted to let you know.

I saw this but the problem was related to a previous app installation and removing PowerSync from watchOS fixes the problem, so it may not be Xcode.

When I try to install the app with the new branch on an iOS 26 simulator or phone I get the following error:

App installation failed.
Failed to iterate on macho slices for input file: /Users/asiergmorato/Library/Developer/CoreSimulator/Devices/D8BDCB2C-690F-4D08-A87D-AC05851CD89F/data/Library/Caches/com.apple.mobile.installd.staging/temp.UJkqjl/extracted/Test.app/Watch/watch Watch App.app/Frameworks/powersync-sqlite-core.framework/powersync-sqlite-core

It doesn't happen if I try to install on a iOS 18 phone or simulator.

Here is a test project, just open it and try to run it on iOS 18 simulator or iOS 26 simulator on Xcode 26 Beta 3. If you remove PowerSync from watchOS you can instal on an iOS 26 simulator without problems.

App installation failed: No se puede instalar Test
Domain: IXUserPresentableErrorDomain
Code: 1
Failure Reason: Inténtalo de nuevo más tarde.
Recovery Suggestion: Failed to iterate on macho slices for input file: /Users/asiergmorato/Library/Developer/CoreSimulator/Devices/D8BDCB2C-690F-4D08-A87D-AC05851CD89F/data/Library/Caches/com.apple.mobile.installd.staging/temp.UJkqjl/extracted/Test.app/Watch/watch Watch App.app/Frameworks/powersync-sqlite-core.framework/powersync-sqlite-core
User Info: {
    DVTErrorCreationDateKey = "2025-07-13 16:44:28 +0000";
    IDERunOperationFailingWorker = IDELaunchiPhoneSimulatorLauncher;
    SimCallingSelector = "installApplication:withOptions:error:";
}
--
No se puede instalar Test
Domain: IXUserPresentableErrorDomain
Code: 1
Failure Reason: Inténtalo de nuevo más tarde.
Recovery Suggestion: Failed to iterate on macho slices for input file: /Users/asiergmorato/Library/Developer/CoreSimulator/Devices/D8BDCB2C-690F-4D08-A87D-AC05851CD89F/data/Library/Caches/com.apple.mobile.installd.staging/temp.UJkqjl/extracted/Test.app/Watch/watch Watch App.app/Frameworks/powersync-sqlite-core.framework/powersync-sqlite-core
--
Failed to iterate on macho slices for input file: /Users/asiergmorato/Library/Developer/CoreSimulator/Devices/D8BDCB2C-690F-4D08-A87D-AC05851CD89F/data/Library/Caches/com.apple.mobile.installd.staging/temp.UJkqjl/extracted/Test.app/Watch/watch Watch App.app/Frameworks/powersync-sqlite-core.framework/powersync-sqlite-core
Domain: MIInstallerErrorDomain
Code: 73
User Info: {
    FunctionName = MIMachOFileIterateImageVersions;
    SourceFileLine = 132;
}
--
parse_macho_iterate_slices failed for /Users/asiergmorato/Library/Developer/CoreSimulator/Devices/D8BDCB2C-690F-4D08-A87D-AC05851CD89F/data/Library/Caches/com.apple.mobile.installd.staging/temp.UJkqjl/extracted/Test.app/Watch/watch Watch App.app/Frameworks/powersync-sqlite-core.framework/powersync-sqlite-core
Domain: NSPOSIXErrorDomain
Code: 0
Failure Reason: Undefined error: 0
User Info: {
    FunctionName = MIMachOFileIterateImageVersions;
    SourceFileLine = 132;
}
--

Event Metadata: com.apple.dt.IDERunOperationWorkerFinished : {
    "device_identifier" = "D8BDCB2C-690F-4D08-A87D-AC05851CD89F";
    "device_model" = "iPhone17,1";
    "device_osBuild" = "26.0 (23A5287g)";
    "device_osBuild_monotonic" = 2300528706;
    "device_os_variant" = 1;
    "device_platform" = "com.apple.platform.iphonesimulator";
    "device_platform_family" = 2;
    "device_reality" = 2;
    "device_thinningType" = "iPhone17,1";
    "device_transport" = 4;
    "dvt_coredevice_version" = "477.25";
    "dvt_coredevice_version_monotonic" = 477025000000000;
    "dvt_coresimulator_version" = 1043;
    "dvt_coresimulator_version_monotonic" = 1043000000000000;
    "dvt_mobiledevice_version" = "1818.0.1";
    "dvt_mobiledevice_version_monotonic" = 1818000001000000;
    "launchSession_schemeCommand" = Run;
    "launchSession_schemeCommand_enum" = 1;
    "launchSession_targetArch" = arm64;
    "launchSession_targetArch_enum" = 6;
    "operation_duration_ms" = 8075;
    "operation_errorCode" = 1;
    "operation_errorDomain" = IXUserPresentableErrorDomain;
    "operation_errorWorker" = IDELaunchiPhoneSimulatorLauncher;
    "operation_error_reportable" = 1;
    "operation_name" = IDERunOperationWorkerGroup;
    "param_consoleMode" = 1;
    "param_debugger_attachToExtensions" = 0;
    "param_debugger_attachToXPC" = 1;
    "param_debugger_type" = 3;
    "param_destination_isProxy" = 0;
    "param_destination_platform" = "com.apple.platform.iphonesimulator";
    "param_diag_MainThreadChecker_stopOnIssue" = 0;
    "param_diag_MallocStackLogging_enableDuringAttach" = 0;
    "param_diag_MallocStackLogging_enableForXPC" = 1;
    "param_diag_allowLocationSimulation" = 1;
    "param_diag_checker_mtc_enable" = 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_guardMalloc_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_enable" = 0;
    "param_diag_sanitizer_ubsan_stopOnIssue" = 0;
    "param_diag_showNonLocalizedStrings" = 0;
    "param_diag_viewDebugging_enabled" = 1;
    "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" = 170300260101;
    "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" = "iphonesimulator26.0";
    "sdk_osVersion" = "26.0";
    "sdk_platformID" = 7;
    "sdk_variant" = iphonesimulator;
    "sdk_version_monotonic" = 2300528704;
}
--


System Information

macOS Version 15.5 (Build 24F74)
Xcode 26.0 (24179.3) (Build 17A5276g)
Timestamp: 2025-07-13T18:44:28+02:00

Originally posted by @asiergmorato in #33

[simolus3]

I can reproduce this issue, but interestingly the tests work both on an iPhone and an Apple watch simulator.