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Delan

Cura 3.5.0 won't load under Windows 10

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I installed Cura 3.5.0 to replace the previous version on Windows 10. After fresh install, Cura launches normally. However, after being closed, Cura won't open again : Cura.exe appears in the task manager (with relevent size : 41MB) but no GUI shows up. Same problem after killing the process and relaunch it.

I tried to uninstall and reinstall, it worked one time then again, after closing Cura it won't open again.

Log files (C:\Users\<user>\AppData\Roaming\cura\3.5\cura.log) are empty for this last opening.

 

Is there another process to kill or something that I missed?

Thanks in advance!

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We installed it on three Windows 10 machines; two desktop and I laptop and have been using it with no issues.

 

We did not uninstall 3.4.1 but rather kept it as a fallback in case of as issue; thus far after numerous prints; no issues.

 

As with previous versions you must allow it through the firewall as stated.

 

 

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I've tried a few things and now Cura works again:

  1. Uninstalled Cura 3.5.0 (previous versions being already uninstalled). Also, during uninstall process, I selected to delete my configuration files.
  2. At this point, there's nothing in C:\Program Files\Ultimakerwhatsoever or in C:\ProgramData. The are still files in C:\Users\<user>\AppData\Roaming\cura and C:\Users\<user>\AppData\Local\cura (although only related to previous version - 3.3 and 3.4 in my case - as well as stderr and stdout log files. I moved them somewhere else, just in case.
  3. I made a fresh install (no additionnal component selected: no arduino drivers, no visual studio). No other issue, Cura starts at the end (as before), and after adding custom printer, allowed to send date, then closing Cura, it starts again (and again) (and again). One solution of the issue, but still, we lose all the configuration. 
  4. I uninstalled Cura, suppressed the newly created "user" files in both local and roaming, put the ones from previous versions back in place, re-installed Cura, it starts with my old parameters at the end of the install. At this point, Cura runs normally (closes and starts as it should). Moreover, the Cura.exe process in the task manager is bigger than when the bug occured (~200MB instead of ~42MB).

Something apparently failed during the install process, but I don't know what. I'll repost here if the problem occurs again.

 

Hope this helps!

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Same here, Cura 3.5.0 dose not start under Windows 10 but a task manager entry exists.

 

My workaround:

Cura desktop icon / right click - properties / compatibility / check compatibility mode for windows 8

 

Unchecking compatibility mode and starting Cura will work once.

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On 10/12/2018 at 9:23 AM, qrti said:

My workaround:

Cura desktop icon / right click - properties / compatibility / check compatibility mode for windows 8

 

Unchecking compatibility mode and starting Cura will work once.

 

Almost made it for me: I had to let the compatibility mode (Windows 8 ) checked otherwise the problem persisted.

Edited by Delan

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Hi All

 

I have the same issue here.

Either Cura 2.1.2 or 3.5.0 are not starting. I have tired it on 4 different computers.

A file "stderr.txt" is generated in "C:\Users\<user>\AppData\Roaming\cura" every time I try to start Cura

It shows:

Fatal Python error: Segmentation fault

Current thread 0x00003218 (most recent call first):
  File "X:\3.5\build\inst\lib\python3.5\site-packages\UM\View\GL\OpenGLContext.py", line 29 in setContext
  File "X:\3.5\build\inst\lib\python3.5\site-packages\UM\View\GL\OpenGLContext.py", line 104 in detectBestOpenGLVersion
  File "X:\3.5\build\inst\lib\python3.5\site-packages\UM\Qt\QtApplication.py", line 129 in initialize
  File "X:\3.5\build\inst\lib\python3.5\site-packages\cura\CuraApplication.py", line 277 in initialize
  File "X:\3.5\build\inst\lib\python3.5\site-packages\UM\Application.py", line 206 in run
  File "X:\3.5\build\inst\lib\python3.5\site-packages\UM\Qt\QtApplication.py", line 287 in run
  File "X:\3.5\build\inst\lib\python3.5\site-packages\cura\CuraApplication.py", line 657 in run
  File "X:\3.5\build\inst\bin\cura_app.py", line 138 in <module>
  File "Console.py", line 24 in <module>
  File "<frozen importlib._bootstrap>", line 634 in _load_backward_compatible
  File "<frozen importlib._bootstrap>", line 664 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 958 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 969 in _find_and_load
  File "__startup__.py", line 12 in <module>
  File "<frozen importlib._bootstrap>", line 634 in _load_backward_compatible
  File "<frozen importlib._bootstrap>", line 664 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 958 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 969 in _find_and_load

 

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On 10/12/2018 at 8:18 PM, newman814 said:

Hi All

 

I have the same issue here.

Either Cura 2.1.2 or 3.5.0 are not starting. I have tired it on 4 different computers.

A file "stderr.txt" is generated in "C:\Users\<user>\AppData\Roaming\cura" every time I try to start Cura

It shows:

Fatal Python error: Segmentation fault

Current thread 0x00003218 (most recent call first):
  File "X:\3.5\build\inst\lib\python3.5\site-packages\UM\View\GL\OpenGLContext.py", line 29 in setContext
  File "X:\3.5\build\inst\lib\python3.5\site-packages\UM\View\GL\OpenGLContext.py", line 104 in detectBestOpenGLVersion
  File "X:\3.5\build\inst\lib\python3.5\site-packages\UM\Qt\QtApplication.py", line 129 in initialize
  File "X:\3.5\build\inst\lib\python3.5\site-packages\cura\CuraApplication.py", line 277 in initialize
  File "X:\3.5\build\inst\lib\python3.5\site-packages\UM\Application.py", line 206 in run
  File "X:\3.5\build\inst\lib\python3.5\site-packages\UM\Qt\QtApplication.py", line 287 in run
  File "X:\3.5\build\inst\lib\python3.5\site-packages\cura\CuraApplication.py", line 657 in run
  File "X:\3.5\build\inst\bin\cura_app.py", line 138 in <module>
  File "Console.py", line 24 in <module>
  File "<frozen importlib._bootstrap>", line 634 in _load_backward_compatible
  File "<frozen importlib._bootstrap>", line 664 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 958 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 969 in _find_and_load
  File "__startup__.py", line 12 in <module>
  File "<frozen importlib._bootstrap>", line 634 in _load_backward_compatible
  File "<frozen importlib._bootstrap>", line 664 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 958 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 969 in _find_and_load

 

This is an issue with your video drivers. Update them to the latest version

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You can try the following:

Cura desktop icon

   Right click in properties

              go to compatibility tab

                    click on "Run Compatibility Troubleshooter"  

                             Try recommended settings 

                                      Test the program (let it cook...)

                                              when it's ready click next and hopefully it works. 

                                    

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