Prusa Slicer 2. 7 3 Error Parsing config file.
 
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Prusa Slicer 2. 7 3 Error Parsing config file.  

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Dennis G. Link
(@dennis-g-link)
Member
Prusa Slicer 2. 7 3 Error Parsing config file.

I recently installed the latest Prusa Slicer 2. 7 3 version and now the program will not open.

I keep getting the same error message box after completely removing Prusa Slicer and reinstalling.

"Error parsing PrusaSlicer config file, it is probably corrupted. Try to manually delete the file to recover from the error. Your user profiles will not be affected."

C:\Users\XXXX\AppData\Roaming\PrusaSlicer.ini

The configuration file contains null characters.

 

Anyone else getting this error message and figured out how to fix it?

Posted : 04/04/2024 2:02 am
vincent cooper
(@vincent-cooper)
Member
RE: Prusa Slicer 2. 7 3 Error Parsing config file.

Dennis, I'm have the same problem that you had with the recent version release 2.9.2. Did you ever figure out what the problem was or how to fix it? Thanks

Posted : 12/01/2026 7:22 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Prusa Slicer 2. 7 3 Error Parsing config file.

Hi Vincent,
Dennis posted once, two years ago, 

He may not answer

the current version of prusa slicer, is 2.9.4

you may be best updating and seeing if the problem persists. 

https://www.prusa3d.com/page/prusaslicer_424/

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility.Location Halifax UK

Posted : 12/01/2026 9:43 pm
vincent cooper
(@vincent-cooper)
Member
RE: Prusa Slicer 2. 7 3 Error Parsing config file.

I actually just reinstalled and cleared my cache and that seemed to fix the issue but thanks for the suggestion. Have a good one!

Posted : 13/01/2026 2:43 pm
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