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Yesterday I upgraded Ubuntu, to the 14.10 version. To fix some problems with the graphic environment, I launched unity-tweak-tool and... It didn't work at all! If I start the program from the command line prompt, I've got this error:

Traceback (most recent call last): File "/usr/bin/unity-tweak-tool", line 72, in UnityTweakTool.Application() File "/usr/lib/python3/dist-packages/UnityTweakTool/init.py", line 79, in init executable_name=cmd_old.split('\x00')[1] IndexError: list index out of range

Even after removing & reinstalling Unity Tweak Tool I got this error. I'd like to know how to fix it! Thank you

2 Answers 2

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So, I am running 14.04 instead of 14.10, but here's what worked for me:

You need to open the file shown in the crash dump, (if using Vim, type ":set nu" without quotes to get line numbers) and go to line 79, and you will see:

 executable_name=cmd_old.split('\x00')[1]

You want to change that 1 to a zero.

Then relaunch.

Again, this works for me on 14.04, but your results may vary.

Please let me know if this works for you.

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I have had the same exact problem a few days ago.

I ran bleachbit and cleared the system cache.

This corrected the problem.

Hope it helps!

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