I can’t run my FlutterFlow app on iOS (or Android) emulator after FlutterFlow update

Troubleshooting

Since today’s FlutterFlow update, my app— which previously ran fine on the iOS simulator—fails to launch. In FlutterFlow itself there are no errors reported, but when I try to run on iPhone 16 Pro (or even on Android’s emulator) the build hangs or immediately fails. I’ve also encountered a Gradle upgrade issue related to Java 21, even though I have my JAVA_HOME set to Java 17. I’m not sure why this keeps blocking both Android and iOS launches.

```
-------------------------------------

Translated Report (Full Report Below)

-------------------------------------

Incident Identifier: 3D9D8918-1B5C-4443-8443-BC084B912A63

CrashReporter Key: 4DCABCA6-203C-F189-2777-9C059D189D09

Hardware Model: MacBookPro17,1

Process: Runner [4860]

Path: /Users/USER/Library/Developer/CoreSimulator/Devices/A0EB4B01-E116-4CF6-BC94-8531547F9F84/data/Containers/Bundle/Application/79837EB3-8533-47DF-8504-D1243A2709D6/Runner.app/Runner

Identifier: com.mycompany.houzy

Version: 1.0.0 (1)

Code Type: ARM-64 (Native)

Role: Foreground

Parent Process: launchd_sim [1631]

Coalition: com.apple.CoreSimulator.SimDevice.A0EB4B01-E116-4CF6-BC94-8531547F9F84 [1038]

Responsible Process: SimulatorTrampoline [893]

Date/Time: 2025-05-19 13:28:14.1445 +0700

Launch Time: 2025-05-19 13:28:13.9975 +0700

OS Version: macOS 15.4.1 (24E263)

Release Type: User

Report Version: 104

Exception Type: EXC_CRASH (SIGABRT)

Exception Codes: 0x0000000000000000, 0x0000000000000000

Termination Reason: DYLD 1 Library missing

Library not loaded: /usr/lib/swift/libswiftWebKit.dylib

Referenced from: <DDA13D0D-FD8B-3888-8AB9-FE4B2ADC0996> /Users/USER/Library/Developer/CoreSimulator/Devices/A0EB4B01-E116-4CF6-BC94-8531547F9F84/data/Containers/Bundle/Application/79837EB3-8533-47DF-8504-D1243A2709D6/Runner.app/Runner.debug.dylib

Reason: tried: '/Library/Developer/CoreSimulator/Volumes/iOS_22E238/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 18.4.simruntime/Contents/Resources/RuntimeRoot/usr/lib/swift/libswiftWebKit.dylib' (no such file), '/usr/lib/swift/libswiftWebKit.dylib' (no such file, not in dyld cache), '/Library/Developer/CoreSimulator/Volumes/iOS_22E238/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 18.4.simruntime/Contents/Resources/RuntimeRoot/usr/lib/libswiftWebKit.dylib' (no such file)

(terminated at launch; ignore backtrace)

Triggered by Thread: 0

Thread 0 Crashed:

0 dyld 0x102de9dd0 __abort_with_payload + 8

1 dyld 0x102dfbd18 abort_with_payload_wrapper_internal + 104

2 dyld 0x102dfbd4c abort_with_payload + 16

3 ??? 0x10301fc64 ???

4 ??? 0x102fe47c0 ???

5 ??? 0x102fe1f80 ???

6 ??? 0x102fe134c ???

7 dyld 0x102d7c844 dyld4::prepareSim(dyld4::RuntimeState&, char const*) + 1308

8 dyld 0x102d7b2f0 dyld4::prepare(dyld4::APIs&, mach_o::Header const*) + 344

9 dyld 0x102d7b184 dyld4::start(dyld4::KernelArgs*, void*, void*)::$_0::operator()() const + 236

10 dyld 0x102d7ab00 start + 5924

Thread 0 crashed with ARM Thread State (64-bit):

x0: 0x0000000000000006 x1: 0x0000000000000001 x2: 0x000000016d13c070 x3: 0x00000000000000fa

x4: 0x000000016d13bc70 x5: 0x0000000000000000 x6: 0x0000000000000000 x7: 0x0000000000000000

x8: 0x0000000000000020 x9: 0x0000000000000012 x10: 0x0000000000000000 x11: 0x207972617262694c

x12: 0x0000000000000065 x13: 0x0000000000001a50 x14: 0x0000000000000004 x15: 0x0000000000000074

x16: 0x0000000000000209 x17: 0xcadd00016d13ac90 x18: 0x0000000000000000 x19: 0x0000000000000000

x20: 0x000000016d13bc70 x21: 0x00000000000000fa x22: 0x000000016d13c070 x23: 0x0000000000000001

x24: 0x0000000000000006 x25: 0x0000000000000000 x26: 0x00000000000b8000 x27: 0x0000000000000000

x28: 0x0000000000000000 fp: 0x000000016d13bc30 lr: 0x0000000102dfbd18

sp: 0x000000016d13bbf0 pc: 0x0000000102de9dd0 cpsr: 0x00001000

far: 0x0000000000000000 esr: 0x56000080 Address size fault

Binary Images:

0x102d74000 - 0x102e0ffff dyld (*) <aca43a8d-6369-3a2c-af92-3d4c458523d6> /usr/lib/dyld

0x102cc0000 - 0x102cc3fff com.mycompany.houzy (1.0.0) <7b037ddc-64e1-3ef3-9c99-578dc37fff39> /Users/USER/Library/Developer/CoreSimulator/Devices/A0EB4B01-E116-4CF6-BC94-8531547F9F84/data/Containers/Bundle/Application/79837EB3-8533-47DF-8504-D1243A2709D6/Runner.app/Runner

0x104e5c000 - 0x105d3ffff Runner.debug.dylib (*) <dda13d0d-fd8b-3888-8ab9-fe4b2adc0996> /Users/USER/Library/Developer/CoreSimulator/Devices/A0EB4B01-E116-4CF6-BC94-8531547F9F84/data/Containers/Bundle/Application/79837EB3-8533-47DF-8504-D1243A2709D6/Runner.app/Runner.debug.dylib

0x109c80000 - 0x10be7ffff io.flutter.flutter (1.0) <4c4c44df-5555-3144-a127-936867ca2f59> /Users/USER/Library/Developer/CoreSimulator/Devices/A0EB4B01-E116-4CF6-BC94-8531547F9F84/data/Containers/Bundle/Application/79837EB3-8533-47DF-8504-D1243A2709D6/Runner.app/Frameworks/Flutter.framework/Flutter

0x0 - 0xffffffffffffffff ??? (*) <00000000-0000-0000-0000-000000000000> ???

EOF

-----------

Full Report

-----------

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{

"uptime" : 1800,

"procRole" : "Foreground",

"version" : 2,

"userID" : 501,

"deployVersion" : 210,

"modelCode" : "MacBookPro17,1",

"coalitionID" : 1038,

"osVersion" : {

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"build" : "24E263",

"releaseType" : "User"

},

"captureTime" : "2025-05-19 13:28:14.1445 +0700",

"codeSigningMonitor" : 1,

"incident" : "3D9D8918-1B5C-4443-8443-BC084B912A63",

"pid" : 4860,

"translated" : false,

"cpuType" : "ARM-64",

"roots_installed" : 0,

"bug_type" : "309",

"procLaunch" : "2025-05-19 13:28:13.9975 +0700",

"procStartAbsTime" : 45026661251,

"procExitAbsTime" : 45030013673,

"procName" : "Runner",

"procPath" : "\/Users\/USER\/Library\/Developer\/CoreSimulator\/Devices\/A0EB4B01-E116-4CF6-BC94-8531547F9F84\/data\/Containers\/Bundle\/Application\/79837EB3-8533-47DF-8504-D1243A2709D6\/Runner.app\/Runner",

"bundleInfo" : {"CFBundleShortVersionString":"1.0.0","CFBundleVersion":"1","CFBundleIdentifier":"com.mycompany.houzy"},

"storeInfo" : {"deviceIdentifierForVendor":"6847EFC6-6B6F-5DC0-8C79-F92DC1551774","thirdParty":true},

"parentProc" : "launchd_sim",

"parentPid" : 1631,

"coalitionName" : "com.apple.CoreSimulator.SimDevice.A0EB4B01-E116-4CF6-BC94-8531547F9F84",

"crashReporterKey" : "4DCABCA6-203C-F189-2777-9C059D189D09",

"appleIntelligenceStatus" : {"state":"available"},

"responsiblePid" : 893,

"responsibleProc" : "SimulatorTrampoline",

"codeSigningID" : "com.mycompany.houzy",

"codeSigningTeamID" : "",

"codeSigningFlags" : 570425857,

"codeSigningValidationCategory" : 10,

"codeSigningTrustLevel" : 4294967295,

"codeSigningAuxiliaryInfo" : 0,

"instructionByteStream" : {"beforePC":"eAAAALwAAAAoAQAAcAAAAAABAABoAAAAGAEAADgBAAAwQYDSARAA1A==","atPC":"AwEAVH8jA9X9e7+p\/QMAkeEz\/pe\/AwCR\/XvBqP8PX9bAA1\/WEC2A0g=="},

"bootSessionUUID" : "E86981D0-9131-43DD-9681-2464260DB9AB",

"fatalDyldError" : 1,

"sip" : "enabled",

"exception" : {"codes":"0x0000000000000000, 0x0000000000000000","rawCodes":[0,0],"type":"EXC_CRASH","signal":"SIGABRT"},

"termination" : {"code":1,"flags":518,"namespace":"DYLD","indicator":"Library missing","details":["(terminated at launch; ignore backtrace)"],"reasons":["Library not loaded: \/usr\/lib\/swift\/libswiftWebKit.dylib","Referenced from: <DDA13D0D-FD8B-3888-8AB9-FE4B2ADC0996> \/Users\/USER\/Library\/Developer\/CoreSimulator\/Devices\/A0EB4B01-E116-4CF6-BC94-8531547F9F84\/data\/Containers\/Bundle\/Application\/79837EB3-8533-47DF-8504-D1243A2709D6\/Runner.app\/Runner.debug.dylib","Reason: tried: '\/Library\/Developer\/CoreSimulator\/Volumes\/iOS_22E238\/Library\/Developer\/CoreSimulator\/Profiles\/Runtimes\/iOS 18.4.simruntime\/Contents\/Resources\/RuntimeRoot\/usr\/lib\/swift\/libswiftWebKit.dylib' (no such file), '\/usr\/lib\/swift\/libswiftWebKit.dylib' (no such file, not in dyld cache), '\/Library\/Developer\/CoreSimulator\/Volumes\/iOS_22E238\/Library\/Developer\/CoreSimulator\/Profiles\/Runtimes\/iOS 18.4.simruntime\/Contents\/Resources\/RuntimeRoot\/usr\/lib\/libswiftWebKit.dylib' (no such file)"]},

"extMods" : {"caller":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"system":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"targeted":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"warnings":0},

"faultingThread" : 0,

"threads" : [{"triggered":true,"id":49613,"threadState":{"x":[{"value":6},{"value":1},{"value":6124978288},{"value":250},{"value":6124977264},{"value":0},{"value":0},{"value":0},{"value":32},{"value":18},{"value":0},{"value":2340027244252129612},{"value":101},{"value":6736},{"value":4},{"value":116},{"value":521},{"value":14617839971639471248},{"value":0},{"value":0},{"value":6124977264},{"value":250},{"value":6124978288},{"value":1},{"value":6},{"value":0},{"value":753664},{"value":0},{"value":0}],"flavor":"ARM_THREAD_STATE64","lr":{"value":4343184664},"cpsr":{"value":4096},"fp":{"value":6124977200},"sp":{"value":6124977136},"esr":{"value":1442840704,"description":" Address size fault"},"pc":{"value":4343111120,"matchesCrashFrame":1},"far":{"value":0}},"frames":[{"imageOffset":482768,"symbol":"__abort_with_payload","symbolLocation":8,"imageIndex":0},{"imageOffset":556312,"symbol":"abort_with_payload_wrapper_internal","symbolLocation":104,"imageIndex":0},{"imageOffset":556364,"symbol":"abort_with_payload","symbolLocation":16,"imageIndex":0},{"imageOffset":4345429092,"imageIndex":4},{"imageOffset":4345186240,"imageIndex":4},{"imageOffset":4345175936,"imageIndex":4},{"imageOffset":4345172812,"imageIndex":4},{"imageOffset":34884,"symbol":"dyld4::prepareSim(dyld4::RuntimeState&, char const*)","symbolLocation":1308,"imageIndex":0},{"imageOffset":29424,"symbol":"dyld4::prepare(dyld4::APIs&, mach_o::Header const*)","symbolLocation":344,"imageIndex":0},{"imageOffset":29060,"symbol":"dyld4::start(dyld4::KernelArgs*, void*, void*)::$_0::operator()() const","symbolLocation":236,"imageIndex":0},{"imageOffset":27392,"symbol":"start","symbolLocation":5924,"imageIndex":0}]}],

"usedImages" : [

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"arch" : "arm64e",

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"size" : 638976,

"uuid" : "aca43a8d-6369-3a2c-af92-3d4c458523d6",

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```

What have you tried so far?
  • Verified Java version: Confirmed /usr/libexec/java_home -V only lists Java 17 and Java 8, with no Java 21 installed.

  • Verified Flutter Doctor: Confirmed they are all good -- no error; no warning

Did you check FlutterFlow's Documentation for this topic?
No
3