OSError: [WinError 233] No process is on the other end of the pipe #99440
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Reference: blender/blender#99440
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System Information
Operating system: Microsoft Windows 10 Home
Graphics card: Radeon RX 5700XT
Blender Version
Blender 2.93.9
Short description of error
After installing the cat add-on I have received the following error when attempting to import FBX models:
Exact steps for others to reproduce the error
Attempt to import FBX (Blender shows error)
Python Error.blend
Added subscriber: @RandomnessRemedy
#104161 was marked as duplicate of this issue
#104201 was marked as duplicate of this issue
blender/blender-addons#103970 was marked as duplicate of this issue
#103297 was marked as duplicate of this issue
#102258 was marked as duplicate of this issue
#101949 was marked as duplicate of this issue
blender/blender-addons#101474 was marked as duplicate of this issue
#101328 was marked as duplicate of this issue
blender/blender-addons#101226 was marked as duplicate of this issue
blender/blender-addons#101119 was marked as duplicate of this issue
#101015 was marked as duplicate of this issue
#100979 was marked as duplicate of this issue
blender/blender-addons#100117 was marked as duplicate of this issue
#99782 was marked as duplicate of this issue
#99693 was marked as duplicate of this issue
blender/blender-addons#99477 was marked as duplicate of this issue
blender/blender-addons#99240 was marked as duplicate of this issue
blender/blender-addons#99245 was marked as duplicate of this issue
Added subscriber: @PratikPB2123
Hi, thanks for the report. Can you share the error your getting? (attach a screenshot or paste it from console)
cats-blender-plugin is not maintained by blender developers.
So if issue is particularly occurring when that plugin is enabled then please report your issue at https://github.com/absolute-quantum/cats-blender-plugin/issues
Changed status from 'Needs Triage' to: 'Needs User Info'
Thanks. Think this is same as blender/blender-addons#97428
original reporter of blender/blender-addons#97428 has solved this error by removing the malwares. Can you check if same is the culprit for you?
it still giving me the error
Added subscriber: @rjg
@RandomnessRemedy Did you follow the instructions that I've linked in the other ticket (https://support.microsoft.com/en-us/windows/help-protect-my-pc-with-microsoft-defender-offline-9306d528-64bf-4668-5b80-ff533f183d6c) or did you use another AV-software / virus removal tool?
i use windows defender since thats what i only use
@RandomnessRemedy Please make sure that you run Windows Update before following the linked guide and/or double-check with another tool such as Microsoft Safety Scanner, Sophos Scan & Clean, Norton Power Eraser, etc. in case Defender missed it.
still giving me the error
@RandomnessRemedy Could you please check if there are issues with corrupted system files with the following steps, based on this guide by Microsoft :
DISM.exe /Online /Cleanup-image /Restorehealth
sfc /scannow
If this does not help, please open Blender's installation directory and double-click the
blender_factory_startup.cmd
to start it (temporarily) with the factory default settings. Are you able to successfully export the FBX in this case?yep with the factory settings in works now thanks
In that case this does appear to be caused by an add-on you have installed. What seems to be odd is that your original report stated that all version of Blender were affected, although you just installed the cats add-on for one particular version. Could you clarify whether your installed the add-on for other versions as well?
If you haven't permanently reset the settings already, could you please open Blender and save your system information through Help > Save System Info in Blender? This file includes a list of add-ons you have enabled.
i had the addon on 2.93 but then when i added it to the new one it broke everything even the steam version of blender{F13262997}
If the executable from steam and portable/standalone were the same version of Blender, then they shared the preferences and add-ons.
It has to be checked whether this is an implementation error in the add-on or if this is a bug in Blender's Python API.
Changed status from 'Needs User Info' to: 'Needs Triage'
how would i check that
That is not something you would have to check, but members of the triaging team or developers of the add-on should. In order to potentially speed this up, I would recommend that you create a ticket on the cats add-on's GitHub repository , since this appears to be caused by their add-on.
Due to my other obligation I have not yet had time to test whether I can reproduce the issue in a Windows VM. @PratikPB2123 Perhaps you can check if this issue is reproducible?
@rjg , I'm able to import FBX files (example file ) even when cats plugin is enabled (Tested in Window 11, 10. Blender version: 2.93, 3.3)
Added subscriber: @Zwan
Added subscriber: @zLeandre
Added subscriber: @vohoangphuc
@Zwan @zLeandre @vohoangphuc Please also upload your system information from Help > Save System Info here. Additionally, please check if the issue appears for you too, when Blender is started through
blender_factory_startup.cmd
.Added subscribers: @Unnikrishnan-M, @visigral
Added subscriber: @shadowguy991
Getting random python errorsto Python traceback: OSError: No process is on the other end of the pipeAdded subscriber: @Ree3kidd
I keep getting a python traceback error when i try importing obj files but when i import smaller obj files i get no error why is that? Also when i import other obj files or older bigger ones they work fine.
@Ree3kidd If you are not seeing the exact error
OSError: [WinError 233] No process is on the other end of the pipe
, then please create a separate bug report through Help > Report a Bug in Blender.Python traceback: OSError: No process is on the other end of the pipeto OSError: [WinError 233] No process is on the other end of the pipesystem-info.txt can you check here
@vohoangphuc Could you please check if disabling blenderkit resolves the issue for you?
Added subscriber: @ninashaw
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Added subscriber: @soccer
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@rjg Could you please help me to fix this problem. I have following steps, based on this guide by Microsoft but it still error. This is my system-info.system-info.txt
@soccer Could you please check if running Blender with temporary factory default settings avoids this issue? Open Blender's installation directory and double-click the
blender_factory_startup.cmd
.I have open blender's with blender_factory_startup.cmd and blender_debug_gpu.cmd is can avoids this issue. It have another solution to fix Winerror 233?
@soccer I'm sorry, I do not understand your question. Do you still see the error when using
blender_factory_startup.cmd
?When I using blender_factory_startup.cmd it not see the error. But when i use the blender not by blender_factory_startup_cmd it still error.
Do you have another solution to fix Winerror 233 when i not use blender_factory_startup.cmd.
@soccer In that case it seems that one of your add-ons triggers the issue. According to your
system-info.txt
you have the following add-ons enabled:Could you please try the following:
C:\Users\Admin\AppData\Roaming\Blender Foundation\Blender
Create a ZIP archive of the
3.1
folder by right-clicking on it and then selecting Send to > Compressed (zipped) folder. Upload the ZIP archive here.Once you have uploaded your preferences, please check which add-on might cause the problem. Start with the add-ons
NodePreview
,lightning_boy_shader
,blenderkit
,rigify
,node_wrangler
andio_scene_x3d
.If yes, repeat from step 2) with a different add-on
If it is caused by an add-on, the error should disappear once you have disable it.
I have check add-on according to instructions. When i disable only io_scene_x3d it not error one time. And when i disable blnderkit it have report error.
@soccer The BlenderKit error seems unrelated at the moment.
WinError 233
disappear completely whenio_scene_x3d
is disabled?Added subscriber: @Srtheboxq
Does the WinError 233 disappear completely when io_scene_x3d is disabled?
What did you do to test whether the error still occurs?
Could you also please upload the ZIP files with your user preferences?
Thank you for the information, we will have to check whether we can reproduce the issue with your supplied files.
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Removed subscriber: @scurest
This is error is happening on seemingly print statements in the code, that don't seem like they could cause this type of error. I would guess it's either:
"OSError: [WinError 233] No process is on the other end of the pipe"
A few days ago I had a similar error in one of my addons and I discovered that it was because I was using 'os.system(')'. After a search for the addons that are included with the official version of Blender I found that 'render_povray' and 'io_scene_x3d' was also using 'os.system(...)' in some parts of the code. After changing them to 'print('...') or disables, the error disappeared in my addon and the system console was stable again
Not sure if I'm misunderstanding, but changing
os.system
in povray and x3d add-ons should not have any effect unless you actually have those enabled and are rendering or importing files with them. I don't see how that code could run otherwise.If your usage of
os.system
triggered this problem that is an interesting clue, and it would very useful to know how to reproduce that. It could help us understand how the problem in this bug report happens.In my case, we uses 'os.system("") without arguments, as a trick to allowed a colored code in the system console, following a stackoverflow tip.
This are placed in the 'init' method of RenderEngine class
First I removed in my addon, and then also in the other's. But I have not thoroughly checked if removing them from the other addons has helped to solve the problem.
Thanks, unfortunately I was not able to reproduce the problem with this information.
Let me re-check.. If I can manage to repro again, I'll prepare a example scene with all the possible information to push here.
So I made a cute cat in blender and I tried to export it to a .fbx file format to upload it on Sketchfab but whatever I did it showed me this error massage :
Python: Traceback (most recent call last):
File "C:\Program Files\Blender Foundation\Blender 3.6\3.6\scripts\addons\io_scene_fbx_init_.py", line 661, in execute
return export_fbx_bin.save(self, context, **keywords)
File "C:\Program Files\Blender Foundation\Blender 3.6\3.6\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3519, in save
ret = save_single(operator, context.scene, depsgraph, filepath, **kwargs_mod)
File "C:\Program Files\Blender Foundation\Blender 3.6\3.6\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3383, in save_single
print('\nFBX export starting... %r' % filepath)
OSError: [WinError 233] No process is on the other end of the pipe
I googled the problem and I could figure out what the problem was.
I only used Texture Paint mode.
I have UVs in all my meshes/objects.
I'm using Blender 3.6.
System: Device name LAPTOP-3I0IMMSE
Processor AMD Ryzen 5 5500U with Radeon Graphics 2.10 GHz
Installed RAM 16.0 GB
System type 64-bit operating system, x64-based processor