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Mark Fortune
(@mark-fortune)
Active Member
PrusaControl Broken

Hey team,

Just wanted to make the appropriate people aware that PrusaControl has broken for myself and others as of the latest update. I have tried a suggested fix of replacing the files in the "data" folder under PrusaControl with the files on the github PrusaControl-settings page, as well as a complete uninstall and reinstall of the program. Neither of these have worked. If anyone has any other suggestions or updates, or if I find anything else out, post up!
OS: Windows 10

Original Prusa i3 MK2S...
Posted : 15/09/2017 4:06 pm
Hewster
(@hewster)
New Member
Re: PrusaControl Broken

Hi,
As of sometime today I get the following error when trying to start PrusaControl on both my machines (Win10)
FATAL ERROR!
Failed to execute main script

Tried uninstalling, then re-installing while off line, and the problem persists 😕

EDIT: I have tried both 0.9.2.297_beta and 0.9.3.388_beta, same result.

Posted : 15/09/2017 6:06 pm
Hewster
(@hewster)
New Member
Re: PrusaControl Broken

Got it working, I did this (NOTE: This is on Windows 10):

Downloaded the latest version of PrusaControl(0.9.3.388_beta) from here:
https://prusacontrol.org/#download

Downloaded the latest settings in a zip file from here:
https://github.com/prusa3d/PrusaControl-settings

Pasted the extracted new files here (overwriting existing):
C:\Program Files (x86)\PrusaControl\data

Ran the program, but still not working.

So I then pasted the new files in:
C:\Users\[**USER NAME**]\.prusacontrol

Ran the program and it worked !

I then uninstalled PrusaControl, and deleted the remaining folders:

C:\Program Files (x86)\PrusaControl
C:\Users\[**USER NAME**]\.prusacontrol

Then installed the latest version again, and it worked straight away 🙂

So maybe users with this problem simply need to copy the new settings files into their C:\Users\[**USER NAME**]\.prusacontrol folder
or
Uninstall and delete the remaining folders before re-installing.

HTH
Hewster

Posted : 15/09/2017 6:42 pm
chris.h22
(@chris-h22)
New Member
Re: PrusaControl Broken

Sort of glad to see I'm not the only one having this problem. I get the same "failed to execute main script" error on both my PCs. Both were working 12 hours ago, today neither is.

I'll try Hewster's solution.

...
Posted : 15/09/2017 6:53 pm
chris.h22
(@chris-h22)
New Member
Re: PrusaControl Broken

I got it to work sort of using Hewster's solution. But...

I noted that the download from github had a file that was not in my Users\[**USER NAME**]\.prusacontrol folder:

materials_i3_mk2mm.json

I moved just that file to that folder, and it started up.

...
Posted : 15/09/2017 6:58 pm
malcolm.r
(@malcolm-r)
Eminent Member
Re: PrusaControl Broken

Hello All;

I have the same issue with the "Failed to Execute script main" Fatal Error message. It was clear on my machine that this occurred right after the WIN10 update 😮

The advice for the new updates will be followed tonight.

cheers

MR

If you want something different for tomorrow you have to DO something different today. :idea:...
Posted : 16/09/2017 3:52 am
box4t
(@box4t)
New Member
Re: PrusaControl Broken

I had the same issue, and it was also fixed by placing a new copy of materials_i3_mk2mm.json in the C:/Users/<username>/.prusacontrol directory. This file was missing for some reason.

Posted : 16/09/2017 5:13 am
SoBaldrick
(@sobaldrick)
Active Member
Re: PrusaControl Broken

same issue, fixed by just adding the materials_i3_mk2mm.json in my .prusacontrol folder. It did not exist before.

...
Posted : 16/09/2017 11:24 am
hyrum.s
(@hyrum-s)
New Member
Re: PrusaControl Broken

OS: Win7
None of the suggested methods fixed Prusa Control on Windows 7. Still will not start - same error message: "Failed to Execute script main". I uninstalled Prusa Control. Deleted the Prusa Control directory under my account directory. Installed the current version - failed. Applied the latest settings from GitHub - failed. Installing it as Admin / running as Admin made no difference.

Something in the latest MS update really smacked it. 🙁

Posted : 16/09/2017 8:20 pm
SoBaldrick
(@sobaldrick)
Active Member
Re: PrusaControl Broken

Hi, try searching for printers.json, this is also in the .prusacontrol folder.

...
Posted : 17/09/2017 10:10 am
Alomamabobo
(@alomamabobo)
Active Member
Re: PrusaControl Broken

Hewster method worked on win10x64, thanks

Prusa i3 MK2S firmware 3.1.0.
FlashAir card....
Posted : 17/09/2017 11:34 am
Jakub Dolezal
(@jakub-dolezal-2)
Admin
Re: PrusaControl Broken

Developer noted, working on a solution. Thanks for feedback guys 😉

Assembly manuals / Knowledge Base
The guy behind Prusa assembly manuals......
Posted : 18/09/2017 12:54 pm
clinton.d
(@clinton-d)
New Member
Re: PrusaControl Broken


Hey team,

Just wanted to make the appropriate people aware that PrusaControl has broken for myself and others as of the latest update. I have tried a suggested fix of replacing the files in the "data" folder under PrusaControl with the files on the github PrusaControl-settings page, as well as a complete uninstall and reinstall of the program. Neither of these have worked. If anyone has any other suggestions or updates, or if I find anything else out, post up!
OS: Windows 10

I had the same problem just after i tried to install the update that was recently released, but when i right clicked and ran the file as administrator, the program started up fine after that.

...
Posted : 18/09/2017 2:49 pm
Mark Fortune
(@mark-fortune)
Active Member
Topic starter answered:
Re: PrusaControl Broken

After uninstalling Prusa Control and the .prusacontrol folder under Users, and then installing the latest update, I was able to get the software to work. All good! 😀

Original Prusa i3 MK2S...
Posted : 18/09/2017 7:55 pm
malcolm.r
(@malcolm-r)
Eminent Member
Re: PrusaControl Broken Back to business!

thank you Mark, thank you Jacob;

I uninstalled the current version, looked for the .prusacontrol in the Users file, deleted it and installed the 3.388 version.

This booted up fine and I immediately received the message to download the newest version 3.900. that I accepted.

This installed just fine.

cheers

mr

If you want something different for tomorrow you have to DO something different today. :idea:...
Posted : 19/09/2017 2:52 am
knsd2
(@knsd2)
New Member
Re: PrusaControl Broken

Hey I've got the same problem.
I tried uninstalling, installing, deleting .prusacontrol folder,...
But still prusacontrol won't start

For reference: Log-file:

[ERROR][main.py:95:log_exception()]-Logging an uncaught exception
Traceback (most recent call last):
File "main.py", line 193, in <module>
File "main.py", line 159, in main
File "controller.py", line 65, in __init__
File "parameters.py", line 361, in __init__
File "parameters.py", line 501, in check_versions
File "parameters.py", line 580, in get_materials_info
File "json\__init__.py", line 296, in load
File "c:\python\python36-32\lib\encodings\cp1252.py", line 23, in decode
UnicodeDecodeError: 'charmap' codec can't decode byte 0x8d in position 54870: character maps to <undefined>

...
Posted : 24/09/2018 3:53 pm
Pyredex
(@pyredex)
New Member
Re: PrusaControl Broken

Same here, Just started

Posted : 24/09/2018 4:30 pm
rainer.d
(@rainer-d)
New Member
Re: PrusaControl Broken

I have the same problem

...
Posted : 24/09/2018 6:14 pm
Bad Raven
(@bad-raven)
Eminent Member
Re: PrusaControl Broken

Yes, Broken.

Prusacontrol I get Fatal Error : failed to execute script main

Slic3r Prusa edition just will not load, no reaction to double click

Pronterface loads but errors when loading a file with location info.

Posted : 24/09/2018 6:44 pm
jesus.v
(@jesus-v)
New Member
Re: PrusaControl Broken

I've got the same error message. 🙁

Posted : 24/09/2018 7:10 pm
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