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Cura 3.4.1 will not start

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I just updated my cura software and now the program will not run. I get the splash screen and then it closes itself. I have tried uninstalling and reinstalling an older version that was working but that is also doing the same thing. What do I do? I need my cura!! 

Edited by Gambit

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To know what sort of bug this is, we would need to see a log file. See some instructions here: https://github.com/Ultimaker/Cura#logging-issues

The "Cura GUI log file" is the important one for this particular issue.


If you need to get Cura started no matter what, a surefire way to do that is to delete the configuration folder that this log file is located in. This resets Cura to factory defaults, so you'll lose all your preferences and profiles and such. But it probably resolves your issue. And it would be nice if you could copy the log file out for us so that we can see what the problem was and fix it for the next time 🙂

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Hi Folks,

Here is the path to cura config files in the c disk.

C://users/"your name"/AppData/Local/

Roll down until you see cura.

Copy all those files and delete those files in this directory.






Edited by Torgeir
Editing wording.

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Ok, here is the log file and my operating system information. I tried doing what Torgeir suggested and deleted the config files but that did not change anything. I still get the splash screen and then the user agreement then Cura closes.


Anything else i can share to help please let me know. 



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Hi Gambit,


Did you check that the "other directory", the one provided by @ghostkeeper, the directory under "roaming" containing another cura directory?

This one: C:\Users\\<your username>\AppData\Roaming\cura\<Cura version>\cura.log (?)











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