Thank you for taking the time to report this bug and helping to make Ubuntu better. Did this happen while you were trying to upgrade? The error you show would happen when upgrading Checkbox to version 0.14.2 or newer.
Could you open a terminal and type:
sudo apt-get install checkbox
if it throws an error, could you paste the error output here?
Also, can you paste the output of running this command on a terminal:
ls -la /usr/share/checkbox/scripts/
This will help us to find and resolve the problem.
Thank you for taking the time to report this bug and helping to make Ubuntu better. Did this happen while you were trying to upgrade? The error you show would happen when upgrading Checkbox to version 0.14.2 or newer.
Could you open a terminal and type:
sudo apt-get install checkbox
if it throws an error, could you paste the error output here?
Also, can you paste the output of running this command on a terminal:
ls -la /usr/share/ checkbox/ scripts/
This will help us to find and resolve the problem.