Expo Template Crashes on iOS TestFlight

[alexboone29]

It is able to build successfully with EAS but when you try and run it via testflight on an iPhone (iOS 26) it crashes.

Here is the full crash report

Incident Identifier: 3AB336ED-34E6-4242-8BF3-9D087D9E22DF
Distributor ID: com.apple.TestFlight
Hardware Model: iPhone17,2
Process: mybettertapp [22935]
Path: /private/var/containers/Bundle/Application/177A7609-681B-4295-825E-290FD3534644/mybettertapp.app/mybettertapp
Identifier: com.neutralbase.bettertstacktestapp
Version: 1.0.0 (3)
AppStoreTools: 17A323
AppVariant: 1:iPhone17,2:26
Beta: YES
Code Type: ARM-64 (Native)
Role: Foreground
Parent Process: launchd [1]
Coalition: com.neutralbase.bettertstacktestapp [5165]

Date/Time: 2025-10-10 10:39:57.9508 -0700
Launch Time: 2025-10-10 10:39:57.7002 -0700
OS Version: iPhone OS 26.0.1 (23A355)
Release Type: User
Baseband Version: 2.04.06
Report Version: 104

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Termination Reason: SIGNAL 6 Abort trap: 6
Terminating Process: mybettertapp [22935]

Triggered by Thread: 4

Thread 0:
0 libsystem_kernel.dylib 0x000000022ea1dcd4 mach_msg2_trap + 8 (:-1)
1 libsystem_kernel.dylib 0x000000022ea212f8 mach_msg2_internal + 76 (mach_msg.c:201)
2 libsystem_kernel.dylib 0x000000022ea21214 mach_msg_overwrite + 428 (mach_msg.c:0)
3 libsystem_kernel.dylib 0x000000022ea2105c mach_msg + 24 (mach_msg.c:323)
4 CoreFoundation 0x00000001868a4a08 __CFRunLoopServiceMachPort + 160 (CFRunLoop.c:2650)
5 CoreFoundation 0x000000018687aa20 __CFRunLoopRun + 1188 (CFRunLoop.c:3035)
6 CoreFoundation 0x0000000186879c44 _CFRunLoopRunSpecificWithOptions + 532 (CFRunLoop.c:3462)
7 GraphicsServices 0x0000000225c6a498 GSEventRunModal + 120 (GSEvent.c:2049)
8 UIKitCore 0x000000018c1f4ddc -[UIApplication _run] + 792 (UIApplication.m:3899)
9 UIKitCore 0x000000018c199b0c UIApplicationMain + 336 (UIApplication.m:5574)
10 mybettertapp 0x0000000100eb962c main + 64 (AppDelegate.swift:6)
11 dyld 0x00000001838f2e28 start + 7116 (dyldMain.cpp:1477)

Thread 1:

Thread 2:

Thread 3:

Thread 4 Crashed:
0 libsystem_kernel.dylib 0x000000022ea280cc __pthread_kill + 8 (:-1)
1 libsystem_pthread.dylib 0x00000001e16b1810 pthread_kill + 268 (pthread.c:1721)
2 libsystem_c.dylib 0x0000000191ed8f1c abort + 124 (abort.c:122)
3 libc++abi.dylib 0x000000018399f808 __abort_message + 132 (abort_message.cpp:66)
4 libc++abi.dylib 0x000000018398e46c demangling_terminate_handler() + 280 (cxa_default_handlers.cpp:71)
5 libobjc.A.dylib 0x000000018389ff38 _objc_terminate() + 172 (objc-exception.mm:499)
6 libc++abi.dylib 0x000000018399ebdc std::__terminate(void ()()) + 16 (cxa_handlers.cpp:59)
7 libc++abi.dylib 0x00000001839a25c8 __cxa_rethrow + 188 (cxa_exception.cpp:658)
8 libobjc.A.dylib 0x00000001838ac508 objc_exception_rethrow + 44 (objc-exception.mm:399)
9 React 0x0000000102373548 invocation function for block in facebook::react::ObjCTurboModule::performVoidMethodInvocation(facebook::jsi::Runtime&, char const, NSInvocation*, NSMutableArray*) + 192
10 React 0x00000001023784d4 std::__1::__function::__func<facebook::react::ObjCTurboModule::performVoidMethodInvocation(facebook::jsi::Runtime&, char const*, NSInvocation*, NSMutableArray*)::$_1, std::__1::allocator<facebook::... + 88
11 libdispatch.dylib 0x00000001be232adc _dispatch_call_block_and_release + 32 (init.c:1575)
12 libdispatch.dylib 0x00000001be24c7ec _dispatch_client_callout + 16 (client_callout.mm:85)
13 libdispatch.dylib 0x00000001be23b468 _dispatch_lane_serial_drain + 740 (queue.c:3991)
14 libdispatch.dylib 0x00000001be23bf44 _dispatch_lane_invoke + 388 (queue.c:4082)
15 libdispatch.dylib 0x00000001be2463ec _dispatch_root_queue_drain_deferred_wlh + 292 (queue.c:7265)
16 libdispatch.dylib 0x00000001be245ce4 _dispatch_workloop_worker_thread + 692 (queue.c:6859)
17 libsystem_pthread.dylib 0x00000001e16ab3b8 _pthread_wqthread + 292 (pthread.c:2696)
18 libsystem_pthread.dylib 0x00000001e16aa8c0 start_wqthread + 8 (:-1)

Thread 5:

Thread 6:

Thread 7 name:
Thread 7:
0 libsystem_kernel.dylib 0x000000022ea1dcd4 mach_msg2_trap + 8 (:-1)
1 libsystem_kernel.dylib 0x000000022ea212f8 mach_msg2_internal + 76 (mach_msg.c:201)
2 libsystem_kernel.dylib 0x000000022ea21214 mach_msg_overwrite + 428 (mach_msg.c:0)
3 libsystem_kernel.dylib 0x000000022ea2105c mach_msg + 24 (mach_msg.c:323)
4 CoreFoundation 0x00000001868a4a08 __CFRunLoopServiceMachPort + 160 (CFRunLoop.c:2650)
5 CoreFoundation 0x000000018687aa20 __CFRunLoopRun + 1188 (CFRunLoop.c:3035)
6 CoreFoundation 0x0000000186879c44 _CFRunLoopRunSpecificWithOptions + 532 (CFRunLoop.c:3462)
7 Foundation 0x00000001848c0734 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212 (NSRunLoop.m:375)
8 Foundation 0x00000001848c090c -[NSRunLoop(NSRunLoop) runUntilDate:] + 64 (NSRunLoop.m:422)
9 UIKitCore 0x000000018c1c5fe8 -[UIEventFetcher threadMain] + 408 (UIEventFetcher.m:1333)
10 Foundation 0x0000000183f92d3c NSThread__start + 732 (NSThread.m:997)
11 libsystem_pthread.dylib 0x00000001e16ae44c _pthread_start + 136 (pthread.c:931)
12 libsystem_pthread.dylib 0x00000001e16aa8cc thread_start + 8 (:-1)

Thread 8:

Thread 9 name:
Thread 9:
0 libsystem_kernel.dylib 0x000000022ea1dcd4 mach_msg2_trap + 8 (:-1)
1 libsystem_kernel.dylib 0x000000022ea212f8 mach_msg2_internal + 76 (mach_msg.c:201)
2 libsystem_kernel.dylib 0x000000022ea21214 mach_msg_overwrite + 428 (mach_msg.c:0)
3 libsystem_kernel.dylib 0x000000022ea2105c mach_msg + 24 (mach_msg.c:323)
4 CoreFoundation 0x00000001868a4a08 __CFRunLoopServiceMachPort + 160 (CFRunLoop.c:2650)
5 CoreFoundation 0x000000018687aa20 __CFRunLoopRun + 1188 (CFRunLoop.c:3035)
6 CoreFoundation 0x0000000186879c44 _CFRunLoopRunSpecificWithOptions + 532 (CFRunLoop.c:3462)
7 React 0x0000000102308ea0 +[RCTJSThreadManager runRunLoop] + 252
8 Foundation 0x0000000183f92d3c NSThread__start + 732 (NSThread.m:997)
9 libsystem_pthread.dylib 0x00000001e16ae44c _pthread_start + 136 (pthread.c:931)
10 libsystem_pthread.dylib 0x00000001e16aa8cc thread_start + 8 (:-1)

Thread 10 name:
Thread 10:
0 libsystem_kernel.dylib 0x000000022ea235d4 __psynch_cvwait + 8 (:-1)
1 libsystem_pthread.dylib 0x00000001e16acb58 _pthread_cond_wait + 984 (pthread_cond.c:862)
2 libc++.1.dylib 0x000000019574b6fc std::__1::condition_variable::wait(std::__1::unique_lockstd::__1::mutex&) + 32 (condition_variable.cpp:30)
3 hermes 0x0000000102c479c4 hermes::vm::HadesGC::Executor::worker() + 116 (:-1)
4 hermes 0x0000000102c4792c void* std::__1::__thread_proxy[abi:nn180100]<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_deletestd::__1::__thread_struct>, hermes::vm::HadesGC::Executor::Exe... + 44 (:-1)
5 libsystem_pthread.dylib 0x00000001e16ae44c _pthread_start + 136 (pthread.c:931)
6 libsystem_pthread.dylib 0x00000001e16aa8cc thread_start + 8 (:-1)

Thread 11 name:
Thread 11:
0 libsystem_kernel.dylib 0x000000022ea235d4 __psynch_cvwait + 8 (:-1)
1 libsystem_pthread.dylib 0x00000001e16acb58 _pthread_cond_wait + 984 (pthread_cond.c:862)
2 libc++.1.dylib 0x000000019574b6fc std::__1::condition_variable::wait(std::__1::unique_lockstd::__1::mutex&) + 32 (condition_variable.cpp:30)
3 hermes 0x0000000102c479c4 hermes::vm::HadesGC::Executor::worker() + 116 (:-1)
4 hermes 0x0000000102c4792c void* std::__1::__thread_proxy[abi:nn180100]<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_deletestd::__1::__thread_struct>, hermes::vm::HadesGC::Executor::Exe... + 44 (:-1)
5 libsystem_pthread.dylib 0x00000001e16ae44c _pthread_start + 136 (pthread.c:931)
6 libsystem_pthread.dylib 0x00000001e16aa8cc thread_start + 8 (:-1)

Thread 4 crashed with ARM Thread State (64-bit):
x0: 0x0000000000000000 x1: 0x0000000000000000 x2: 0x0000000000000000 x3: 0x0000000000000000
x4: 0xfffffffffc587fba x5: 0x000000000000001a x6: 0xffffffffbfc007ff x7: 0xfffff0003ffff800
x8: 0xc57d1a20dee00ed7 x9: 0xc57d1a21b1f77ed7 x10: 0x0000000000000000 x11: 0x0000000000000000
x12: 0x001660b28043a858 x13: 0x001650000043a400 x14: 0x000000000003a800 x15: 0x000000000000001d
x16: 0x0000000000000148 x17: 0x000000016f177000 x18: 0x0000000000000000 x19: 0x0000000000000006
x20: 0x0000000000002003 x21: 0x000000016f1770e0 x22: 0x434c4e47432b2b00 x23: 0x00000001075626e0
x24: 0x000000010345c300 x25: 0x0000000000000000 x26: 0x0000000000000000 x27: 0x0000000000000000
x28: 0x0000000000000114 fp: 0x000000016f1766b0 lr: 0x00000001e16b1810
sp: 0x000000016f176690 pc: 0x000000022ea280cc cpsr: 0x40000000
esr: 0x56000080 (Syscall)

Binary Images:
0x100eb4000 - 0x10117bfff mybettertapp arm64 /var/containers/Bundle/Application/177A7609-681B-4295-825E-290FD3534644/mybettertapp.app/mybettertapp
0x1012d4000 - 0x1012dffff libobjc-trampolines.dylib arm64e <3f2a8bfdcd6c3784b0ce8813d842bbbd> /private/preboot/Cryptexes/OS/usr/lib/libobjc-trampolines.dylib
0x10169c000 - 0x101723fff ReactNativeDependencies arm64 /private/var/containers/Bundle/Application/177A7609-681B-4295-825E-290FD3534644/mybettertapp.app/Frameworks/ReactNativeDependencies.framework/ReactNativeDependencies
0x102068000 - 0x1024a3fff React arm64 /private/var/containers/Bundle/Application/177A7609-681B-4295-825E-290FD3534644/mybettertapp.app/Frameworks/React.framework/React
0x102b78000 - 0x102d7bfff hermes arm64 /private/var/containers/Bundle/Application/177A7609-681B-4295-825E-290FD3534644/mybettertapp.app/Frameworks/hermes.framework/hermes
0x18386c000 - 0x1838bdadf libobjc.A.dylib arm64e <677d64df97cd3525a709c4c0ad1a0c69> /usr/lib/libobjc.A.dylib
0x1838ee000 - 0x18398cac7 dyld arm64e <9dc3471211aa3b1dafe001b95a6e40d3> /usr/lib/dyld
0x18398d000 - 0x1839a76c7 libc++abi.dylib arm64e <7fae731b4b7e390daf762a34206a40cf> /usr/lib/libc++abi.dylib
0x183f31000 - 0x184d6127f Foundation arm64e <0555af5420753f2dbc40733e55eee95a> /System/Library/Frameworks/Foundation.framework/Foundation
0x18685d000 - 0x186de7c3f CoreFoundation arm64e <973e47e588f03367b9d446d5cb999b75> /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
0x18c14b000 - 0x18e4f273f UIKitCore arm64e /System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore
0x191e61000 - 0x191ee156f libsystem_c.dylib arm64e <45ef0c602b4d33cf85a2551531a2e3d8> /usr/lib/system/libsystem_c.dylib
0x195729000 - 0x1957bbde3 libc++.1.dylib arm64e /usr/lib/libc++.1.dylib
0x1be231000 - 0x1be27725f libdispatch.dylib arm64e /usr/lib/system/libdispatch.dylib
0x1e16aa000 - 0x1e16b644f libsystem_pthread.dylib arm64e /usr/lib/system/libsystem_pthread.dylib
0x225c69000 - 0x225c717ff GraphicsServices arm64e <4eb73f50cdf2316194c00f3e7002b67c> /System/Library/PrivateFrameworks/GraphicsServices.framework/GraphicsServices
0x22ea1d000 - 0x22ea57cfb libsystem_kernel.dylib arm64e <1daee906c3853b1083740fb0096755e0> /usr/lib/system/libsystem_kernel.dylib

EOF

[AmanVarshney01]

Can you try updating your metro.config.js to this 🤔

// Learn more https://docs.expo.io/guides/customizing-metro
const { getDefaultConfig } = require("expo/metro-config");
const { withNativeWind } = require("nativewind/metro");

const config = withNativeWind(getDefaultConfig(__dirname), {
	input: "./global.css",
	configPath: "./tailwind.config.js",
});

config.resolver.unstable_enablePackageExports = true;

module.exports = config;

[AmanVarshney01]

is this resolved now? @alexboone29

[alexboone29]

We did, Expo doesn’t tell you if it doesn’t inject the public environment variables like expo public convex url and that will crash the app if you build it for TestFlight whereas in local development it uses your .env So either you have to hard code any expo public into app.json or you can use app.config.js and make sure you import dotenv and then you can do process.env.EXPO_PUBLIC_CONVEX_URL There were some additional things we realized that caused some build errors like gemfile for installing specific cocoa pods which is nice to have. So I’ll have my team give a full breakdown to make it easier for you to update. Alex

…

On Mon, Oct 13, 2025 at 11:59 AM Aman Varshney ***@***.***> wrote: *AmanVarshney01* left a comment (AmanVarshney01/create-better-t-stack#617) <#617 (comment)> is this resolved now? @alexboone29 <https://github.com/alexboone29> — Reply to this email directly, view it on GitHub <#617 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/A6JK6UVBB6IGLMVKELOAPMT3XPY7PAVCNFSM6AAAAACI3W4WH6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTGOJYG4YDCNJQGE> . You are receiving this because you were mentioned.Message ID: ***@***.***>