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Won't Fix
Votes
0
Found in
2018.4
2019.3
2019.4
2019.4.4f1
2020.1
2020.2
Issue ID
1263935
Regression
No
Crash on "Begin MonoManager ReloadAssembly" when opening a specific project
Reproduction steps:
1. Open the project attached by the user
Reproducible with: 2018.4.25f1, 2019.3.16f1, 2019.4.5f1, 2020.1.0f1, 2020.2.0a18
First lines of the stacktraces:
On Windows:
0x00007FF9DEA39709 (KERNELBASE) RaiseException
0x00007FF975CB6025 (mono-2.0-bdwgc) [c:\build\output\unity-technologies\mono\mono\utils\mono-log-common.c:142] mono_log_write_logfile
0x00007FF975CA4CC3 (mono-2.0-bdwgc) [c:\build\output\unity-technologies\mono\mono\eglib\goutput.c:141] monoeg_assertion_message
0x00007FF975D35FAC (mono-2.0-bdwgc) [c:\build\output\unity-technologies\mono\mono\metadata\metadata.c:1044] mono_metadata_string_heap
0x00007FF975D0CBF1 (mono-2.0-bdwgc) [c:\build\output\unity-technologies\mono\mono\metadata\image.c:1065] mono_image_load_names
0x00007FF975D0A51C (mono-2.0-bdwgc) [c:\build\output\unity-technologies\mono\mono\metadata\image.c:1336] do_mono_image_load
On OSX:
#0 0x007fff6998133a in __pthread_kill
#1 0x007fff69908808 in abort
#2 0x00000134c0e333 in mono_log_close_logfile
#3 0x00000134c21530 in monoeg_g_logv
#4 0x00000134c216a7 in monoeg_assertion_message
#5 0x00000134b8ed3e in mono_metadata_user_string
Notes:
- Right before the crash this assertion failure can be found in the logs:
Begin MonoManager ReloadAssembly
* Assertion at ..\mono\metadata\metadata.c:1043, condition `index < meta->heap_strings.size' not met
- Through case 984745, this should be a dupe of 1035692, but still seems reproducible with this project
- Deleting the Library folder or everything but the Assets folder doesn't help
- Usually silent crashes on Windows and gracefully crashes on OSX
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Resolution Note:
Found the problem, the project had in the Assets folder, and obj->Debug folder with Assembly-CSharp.dll files from previous builds of the project. That will obviously corrupt the project and crash Unity. Fix is to delete that folder and project should load fine.