Opening preferences crashes Blender 4.2 in version 0.0.22 #191

dsaltm · 2024-09-05T05:42:38Z

Just testing the updated extension (version 0.0.22) and in Blender 4.2.0 and 4.2.1 trying to open the preferences crashes Blender with an error.

Windows 11
Error : EXCEPTION_ACCESS_VIOLATION
Address : 0x00007FFFB194562A
Module : python311.dll
Thread : 00005ab8
Writing: C:\Users\Dan\AppData\Local\Temp\blender.crash.txt

dsaltm · 2024-09-05T05:47:38Z

(Also tried with the portable version and same result)

Mateusz-Grzelinski · 2024-09-05T06:38:39Z

In my case 4.2.0 works fine.

I just downloaded newest 4.2.1 and it is also fine.

I will need more info to debug the issue.
You can also try https://github.com/JacquesLucke/blender_vscode?tab=readme-ov-file#how-can-i-separate-development-environment-from-my-daily-work

F-Brar · 2024-09-06T04:15:25Z

I can confirm this bug on Blender 4.2.1 in macOS (14.6.1). Here is the crash report:


# Blender 4.2.1, Commit date: 2024-08-19 11:21, Hash 396f546c9d82

# backtrace
0   Blender                             0x000000010573d0a8 BLI_system_backtrace + 56
1   Blender                             0x0000000104e73904 _ZL16sig_handle_crashi + 364
2   libsystem_platform.dylib            0x0000000193ebb584 _sigtramp + 56
3   Blender                             0x000000010964f43c module_getattro + 112
4   Blender                             0x000000010964f43c module_getattro + 112
5   Blender                             0x0000000109651604 _PyObject_LookupAttr + 140
6   Blender                             0x00000001096d713c builtin_getattr + 84
7   Blender                             0x000000010964d138 cfunction_vectorcall_FASTCALL + 260
8   Blender                             0x0000000109602bb0 PyObject_Vectorcall + 80
9   Blender                             0x00000001096e29f4 _PyEval_EvalFrameDefault + 33812
10  Blender                             0x00000001096da540 _PyEval_Vector + 200
11  Blender                             0x0000000105d6b3d4 _ZL14bpy_class_callP8bContextP10PointerRNAP11FunctionRNAP13ParameterList + 1240
12  Blender                             0x0000000105d02118 _ZL10panel_drawPK8bContextP5Panel + 120
13  Blender                             0x0000000105d86644 _ZL13ed_panel_drawPK8bContextP7ARegionP8ListBaseP9PanelTypeP5PaneliiPcPKc21wmOperatorCallContext + 1024
14  Blender                             0x0000000105d85e2c _Z26ED_region_panels_layout_exPK8bContextP7ARegionP8ListBase21wmOperatorCallContextPPKcS8_ + 756
15  Blender                             0x0000000106827b34 _ZL27userpref_main_region_layoutPK8bContextP7ARegion + 168
16  Blender                             0x0000000105d80a60 _Z19ED_region_do_layoutP8bContextP7ARegion + 132
17  Blender                             0x0000000105795ed8 _Z14wm_draw_updateP8bContext + 1212
18  Blender                             0x0000000105791bb0 _Z7WM_mainP8bContext + 52
19  Blender                             0x0000000104e6ec94 main + 884
20  dyld                                0x0000000193b020e0 start + 2360

# Python backtrace
  File "/Applications/Blender421.app/Contents/Resources/4.2/scripts/modules/addon_utils.py", line 1818 in _extensions_warnings_get
  File "/Applications/Blender421.app/Contents/Resources/4.2/scripts/addons_core/bl_pkg/bl_extension_ui.py", line 453 in addons_panel_draw_items
  File "/Applications/Blender421.app/Contents/Resources/4.2/scripts/addons_core/bl_pkg/bl_extension_ui.py", line 713 in addons_panel_draw_impl
  File "/Applications/Blender421.app/Contents/Resources/4.2/scripts/addons_core/bl_pkg/bl_extension_ui.py", line 792 in addons_panel_draw
  File "/Applications/Blender421.app/Contents/Resources/4.2/scripts/modules/bpy_types.py", line 1034 in draw_ls

dsaltm · 2024-09-06T04:52:36Z

After inspecting the crash txt file, this was the python backtrace on Windows 11 as well...

# Python backtrace
  File "C:\Program Files\Blender Foundation\blender-4.2.0-candidate+v42.4d6ba7604dcc-windows.amd64-release\4.2\scripts\modules\addon_utils.py", line 1647 in _extensions_warnings_get
  File "C:\Program Files\Blender Foundation\blender-4.2.0-candidate+v42.4d6ba7604dcc-windows.amd64-release\4.2\scripts\addons_core\bl_pkg\bl_extension_ui.py", line 436 in addons_panel_draw_items
  File "C:\Program Files\Blender Foundation\blender-4.2.0-candidate+v42.4d6ba7604dcc-windows.amd64-release\4.2\scripts\addons_core\bl_pkg\bl_extension_ui.py", line 681 in addons_panel_draw_impl
  File "C:\Program Files\Blender Foundation\blender-4.2.0-candidate+v42.4d6ba7604dcc-windows.amd64-release\4.2\scripts\addons_core\bl_pkg\bl_extension_ui.py", line 759 in addons_panel_draw
  File "C:\Program Files\Blender Foundation\blender-4.2.0-candidate+v42.4d6ba7604dcc-windows.amd64-release\4.2\scripts\modules\bpy_types.py", line 1034 in draw_ls

F-Brar · 2024-09-06T05:57:36Z

For some reason, now the same happens in version 0.0.21. I am almost 100% certain that I was able to open preferences in Blender just fine before installing 0.0.22 the first time... I used Blender for a month without noticing such crashes.

F-Brar · 2024-09-06T21:06:20Z

The crash only happens when clicking on the extensions or add-on tab in blenders settings.

I did more testing and the crash happens even with version 0.0.21 in a fresh portable install of Blender 4.2.1. I am still pretty sure that this worked fine, but in all my tests I wasn't able to open the extensions tab without crashing. I also tested using the BLENDER_USER_RESOURCES folder, but with the same result.
The following warnings showed up using both methods, but I guess that's not the cause of the bug:

Warning: extensions.blender.org: [Errno 2] No such file or directory: './blender_vscode_development/extensions/blender_org'
Warning: User Default: [Errno 2] No such file or directory: './blender_vscode_development/extensions/user_default'

Let me know if you need me to test anything else.

F-Brar · 2024-09-06T21:10:10Z

I am not sure if this is related but in the vscode tasks output, the following error prints (twice) whenever I execute Blender: Start:

Error: there is no registered task type '9710d853e5'. Did you miss installing an extension that provides a corresponding task provider?
Error: there is no registered task type '9710d853e5'. Did you miss installing an extension that provides a corresponding task provider?

F-Brar · 2024-09-06T21:14:27Z

Btw: After the crash, everything seems to work fine, when I start Blender without vscode.

Mateusz-Grzelinski · 2024-09-06T23:00:06Z

Warning: extensions.blender.org: [Errno 2] No such file or directory: './blender_vscode_development/extensions/blender_org'

I have seen it multiple times during development, should not be an issue.

Error: there is no registered task type '9710d853e5'. Did you miss installing an extension that provides a corresponding task provider?

this is a new one.

I just reproduced the crash on 4.2.1. As the same as you the backtrace fails on _extensions_warnings_get -> that mean there is an error with extensions that causes blender to crash.

Even better: after disabling check for updates on startup I can not even open the preferences.

I tried also disabling the code for creating dedicated repo, enabling --log-level -1 --debug-all, it crashes consistantly. It does not matter if I want to develop addon or extension (i removed the blender_manifest.toml)

wm_window_make_drawable: set drawable 1
UI_menutype_draw: opening menu "TOPBAR_MT_editor_menus"
UI_menutype_draw: opening menu "TIME_MT_editor_menus"
UI_menutype_draw: opening menu "VIEW3D_MT_editor_menus"
wm_window_make_drawable: set drawable 2
Repository data: C:\Users\grzel\AppData\Roaming\Blender Foundation\Blender\4.2\extensions\blender_org not found, sync required!
fake_module C:\Users\grzel\AppData\Roaming\Blender Foundation\Blender\4.2\extensions\user_default\leagacy_and_extension\__init__.py bl_ext.user_default.leagacy_and_extension
Warning: add-on missing manifest, this can cause poor performance!: 'C:\\Users\\grzel\\AppData\\Roaming\\Blender Foundation\\Blender\\4.2\\extensions\\user_default\\leagacy_and_extension\\blender_manifest.toml'
Error   : EXCEPTION_ACCESS_VIOLATION
Address : 0x00007FFC4AE3562A
Module  : python311.dll
Thread  : 00004734
Writing: C:\Users\grzel\AppData\Local\Temp\blender.crash.txt

 *  The terminal process "E:\BlenderProjects\bledner.exe\blender-4.2.1-windows-x64\blender-4.2.1-windows-x64\blender.exe '--python', 'e:\BlenderProjects\blender_vscode\pythonFiles\launch.py', '--debug-all', '--log-level', '-1'" terminated with exit code: 11.

Also tried older version of debugpy-1.7.0

I dont think this is something we can resolve here. Lets check with blender developers.

F-Brar · 2024-09-08T12:54:59Z

Thanks again for looking into this. I filed a bug report in the Blender repo: https://projects.blender.org/blender/blender/issues/127309

Mateusz-Grzelinski · 2024-09-09T10:04:05Z

Found an issue: it is dependency of dependency that is broken: dependency of flask called werkzeug:

werkzeug-3.0.4.dist-info - broken
Werkzeug-3.0.3.dist-info - works

stored in AppData\Roaming\Blender Foundation\Blender\4.2\scripts\modules

In order to fix do something like (not tested extensively):

E:\BlenderProjects\bledner.exe\blender-4.2.1-windows-x64\blender-4.2.1-windows-x64\4.2\python\bin\python.exe -m pip install werkzeug==2.2.3 --target "C:\Users\grzel\AppData\Roaming\Blender Foundation\Blender\4.2\scripts\modules"

A proper fix is not obvious as we can not remove/downgrade loaded python modules: https://projects.blender.org/blender/blender/issues/125049

F-Brar · 2024-09-10T10:52:02Z

Yes, after replacing werkzeug 3.x with 2.2.3 I am able to open settings too on macOS. 👏

Werkzeug 3.0.4 causes blender to crash when opening preferences. Werkzeug is flask dependency. Pin also falsk, just to be sure. This change will not fix existing setups.

- use one pip call to install dependencies. It allows to correctly handle constraints. - when package is outside of constraints, perform clean installation. Clean installation in most cases is not necessary but with --target it has strange corner cases. - commit semver dependency with code

blastframe · 2024-09-12T06:34:41Z

Same here with Blender 4.3 - Edit > Preferences crashes Blender with Blender Development enabled

System Information
Operating system: macOS-14.5-arm64-arm-64bit 64 Bits
Graphics card: Metal API Apple M1 Max 1.2

Blender Version
Broken: version: 4.3.0 Alpha, branch: main, commit date: 2024-09-08 20:54, hash: 1bc0ec1b80a1

# backtrace
0   Blender                             0x000000010364870c BLI_system_backtrace + 56
1   Blender                             0x0000000102d801e4 _ZL16sig_handle_crashi + 360
2   libsystem_platform.dylib            0x000000019589b584 _sigtramp + 56
3   Blender                             0x000000010767c56c module_getattro + 112
4   Blender                             0x000000010767c56c module_getattro + 112
5   Blender                             0x000000010767e734 _PyObject_LookupAttr + 140
6   Blender                             0x00000001077045f8 builtin_getattr + 84
7   Blender                             0x000000010767a268 cfunction_vectorcall_FASTCALL + 260
8   Blender                             0x000000010762fbe4 PyObject_Vectorcall + 80
9   Blender                             0x000000010770fe98 _PyEval_EvalFrameDefault + 33788
10  Blender                             0x00000001077079fc _PyEval_Vector + 200
11  Blender                             0x0000000103cb2924 _ZL14bpy_class_callP8bContextP10PointerRNAP11FunctionRNAP13ParameterList + 1240
12  Blender                             0x0000000103c48e60 _ZL10panel_drawPK8bContextP5Panel + 120
13  Blender                             0x0000000103ccd6ac _ZL13ed_panel_drawPK8bContextP7ARegionP8ListBaseP9PanelTypeP5PaneliiPcPKc21wmOperatorCallContext + 1024
14  Blender                             0x0000000103ccce94 _Z26ED_region_panels_layout_exPK8bContextP7ARegionP8ListBase21wmOperatorCallContextPPKcS8_ + 756
15  Blender                             0x0000000104842dc8 _ZL27userpref_main_region_layoutPK8bContextP7ARegion + 168
16  Blender                             0x0000000103cc7cd8 _Z19ED_region_do_layoutP8bContextP7ARegion + 132
17  Blender                             0x00000001036a1168 _Z14wm_draw_updateP8bContext + 1196
18  Blender                             0x000000010369cd24 _Z7WM_mainP8bContext + 52
19  Blender                             0x0000000102d7b534 main + 916
20  dyld                                0x00000001954e20e0 start + 2360

# Python backtrace
  File "/Applications/Blender 4.3.app/Contents/Resources/4.3/scripts/modules/addon_utils.py", line 1818 in _extensions_warnings_get
  File "/Applications/Blender 4.3.app/Contents/Resources/4.3/scripts/addons_core/bl_pkg/bl_extension_ui.py", line 1462 in extensions_panel_draw_impl
  File "/Applications/Blender 4.3.app/Contents/Resources/4.3/scripts/addons_core/bl_pkg/bl_extension_ui.py", line 2067 in extensions_panel_draw
  File "/Applications/Blender 4.3.app/Contents/Resources/4.3/scripts/modules/bpy_types.py", line 1037 in draw_ls

Mateusz-Grzelinski · 2024-09-12T12:14:57Z

The issue is not fixed by developers yet even in newest version, so this is expected. I asked Jack to release hotfix (look above) but there is dependency improvement upcoming, also look above

zhuoqun-chen · 2024-09-28T06:01:23Z

Found an issue: it is dependency of dependency that is broken: dependency of flask called werkzeug:
werkzeug-3.0.4.dist-info - broken
Werkzeug-3.0.3.dist-info - works
stored in AppData\Roaming\Blender Foundation\Blender\4.2\scripts\modules

In order to fix do something like (not tested extensively):
E:\BlenderProjects\bledner.exe\blender-4.2.1-windows-x64\blender-4.2.1-windows-x64\4.2\python\bin\python.exe -m pip install werkzeug==2.2.3 --target "C:\Users\grzel\AppData\Roaming\Blender Foundation\Blender\4.2\scripts\modules"
A proper fix is not obvious as we can not remove/downgrade loaded python modules: https://projects.blender.org/blender/blender/issues/125049

Thx @Mateusz-Grzelinski, I had the same issue here during testing my extension in blender 4.2.2 and downgrade to Werkzeug==2.2.3 solved my problem!

jdknox · 2024-09-30T19:55:57Z

The issue is not fixed by developers yet even in newest version, so this is expected. I asked Jack to release hotfix (look above) but there is dependency improvement upcoming, also look above

But wasn't the official fix already done in August as a workaround where open modules are flagged for deletion, and then they are deleted when Blender starts up the next time? Are they planning on a different fix? It's seems like their hands are probably tied because of Win32.

Campbell Barton's fix from August.
Issue closed here

Mateusz-Grzelinski · 2024-10-13T18:05:54Z

The issues you linked are related to uninstalling extension on windows.
The issues that I am observing are those ones:
https://projects.blender.org/blender/blender/issues/127282
https://projects.blender.org/blender/blender/issues/127097

Mateusz-Grzelinski · 2024-10-23T10:04:43Z

Should be fixed according to https://projects.blender.org/blender/blender/commit/9a252c2e73b9303d4c2c493c7a80a75a4b1629bc
Todo: Check which blender versions will get this fix

Mateusz-Grzelinski added the bug Something isn't working label Sep 5, 2024

Mateusz-Grzelinski added this to the 0.0.23 milestone Sep 5, 2024

dsaltm changed the title ~~Opening preferences crashes Blender 4.2 in version 0.0.22 on Windows 11~~ Opening preferences crashes Blender 4.2 in version 0.0.22 Sep 6, 2024

Mateusz-Grzelinski modified the milestones: 0.0.23, 0.0.24 Sep 7, 2024

zhuoqun-chen mentioned this issue Sep 29, 2024

Feat: allow extract addon folder inside subdir of git repo #205

Closed

Mateusz-Grzelinski mentioned this issue Sep 29, 2024

Blender crashes immediately after launching my addon through blender_vscode #206

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Opening preferences crashes Blender 4.2 in version 0.0.22 #191

Opening preferences crashes Blender 4.2 in version 0.0.22 #191

dsaltm commented Sep 5, 2024

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Mateusz-Grzelinski commented Oct 23, 2024

Opening preferences crashes Blender 4.2 in version 0.0.22 #191

Opening preferences crashes Blender 4.2 in version 0.0.22 #191

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