Jump to content

Cura 4.6.1 won't start


Recommended Posts

Posted · Cura 4.6.1 won't start

Hi everyone,

We use Ultimaker's at my work and today I wanted to upgrade Cura from 4.4.1 to 4.6.1. Unfortunately after having reinstalled Cura 4.4.1 and installed 4.6.1 it won't start, I get this error message:


I tried to reinstall Cura with no effect.

I also moved my old Cura 4.4.1 folder (wich I suppose contains my config files) with no effect.


I am not at all comfortable with these kind of erreor message and don't understand what it is trying to tell me... Can anyone help me?


  • Link to post
    Share on other sites

    Posted · Cura 4.6.1 won't start

    This does not seem to have anything to do with your (Cura) configuration. Cura crashes very early in the start sequence while trying to set up "sentry", which is ironically a tool for reporting crashes.


    I can probably fix the problem for you, but the method is an ugly hack, and it will probably cause the module to make and restore backups not work.


    Go to C:\Program Files\Ultimaker Cura 4.6\ and copy the file python35.zip to your desktop.

    Open the zipfile, and remove the folder named "sentry_sdk" from it.

    Move the zipfile back to its original place.

    • Thanks 1
    Link to post
    Share on other sites

    Posted (edited) · Cura 4.6.1 won't start

    Thanks for this reply! I'll try it when I will be back at work!


    edit: Tried it right now and it worked, thanks!

    Edited by Curven
  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
    • Our picks

      • Introducing the UltiMaker Factor 4
        We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
          • Thanks
          • Like
        • 3 replies
      • UltiMaker Cura 5.7 stable released
        Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more. 
          • Like
        • 26 replies
    • Create New...