Xamarin iOS 应用程序仅在发布模式下在启动时崩溃。 xamarin_initialize EXC_BAD_ACCESS

Question

Crash log from testflight. can't reproduce in debug mode. Haven't changed anything near startup recently that I can think of. did update visual studio recently, which is always risky. Any ideas on where to look? I'm currently at a loss.

Incident Identifier: A16565BD-14CB-422F-8201-1F83E62D0636
Beta Identifier: 9AC85708-52C8-4855-9C08-F86429C52CA2
Hardware Model: iPhone11,6
Process: app [47469]
Path: /private/var/containers/Bundle/Application/DEBBDCD7-7D27-4B7D-AB2E-22D5C399BA37/app/app
Identifier:
Version: 2 (2.6.3)
AppStoreTools: 11C29
AppVariant: 1:iPhone11,6:13
Beta: YES
Code Type: ARM-64 (Native)
Role: Foreground
Parent Process: launchd [1]
Coalition:

Date/Time: 2019-12-13 12:32:17.7284 -0600
Launch Time: 2019-12-13 12:32:17.1647 -0600
OS Version: iPhone OS 13.2.3 (17B111)
Release Type: User
Baseband Version: 2.02.12
Report Version: 104

Exception Type: EXC_BAD_ACCESS (SIGABRT)
Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000000
VM Region Info: 0 is not in any region. Bytes before following region: 4295278592
REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL
UNUSED SPACE AT START
--->
__TEXT 000000010004c000-0000000100164000 [ 1120K] r-x/r-x SM=COW ...toGrindersiOS

Triggered by Thread: 0

Thread 0 name:
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x00000001a094eefc __pthread_kill + 8
1 libsystem_pthread.dylib 0x00000001a086ed10 pthread_kill + 196 (pthread.c:1456)
2 libsystem_c.dylib 0x00000001a07feaf4 __abort + 116 (abort.c:147)
3 libsystem_c.dylib 0x00000001a07fea80 abort + 116 (abort.c:118)
4 appname 0x0000000101a38ca0 xamarin_initialize.cold.1 + 0
5 appname 0x0000000101a2ef54 xamarin_printf + 27144020 (runtime.m:2541)
6 appname 0x00000001018f8ad8 mono_invoke_unhandled_exception_hook + 132
7 appname 0x000000010188d68c mono_handle_exception_internal + 5580
8 appname 0x000000010188c0b4 mono_handle_exception + 56
9 appname 0x0000000101881c2c mono_arm_throw_exception + 376
10 appname 0x000000010043433c throw_exception + 172
11 appname 0x00000001019686a8 mono_raise_exception + 64
12 appname 0x0000000101a2ed6c xamarin_process_managed_exception + 27143532 (runtime.m:2497)
13 appname 0x0000000101a2f458 xamarin_initialize + 27145304 (runtime.m:979)
14 appname 0x0000000101a360e4 xamarin_main + 27173092 (monotouch-main.m:432)
15 appname 0x0000000100165878 main + 1153144 (main.m:142)
16 libdyld.dylib 0x00000001a0958e18 start + 4

Answer 1

For future me or anyone that runs into something similar, I solved this with some framework updates/downgrades. I haven't narrowed it down to the exact issue because i did several at once based on what the project was asking for and past experience.

The main change I made that I think is the most likely culprit was a downgrade of Xamarin.Build.Download to 0.4.11. Sorry I can't be more helpful.