I've been trying to install some applications like Skype and Windows, yet same error message keeps showing
There seems to be a programming error in aptdaemon, the software that allows you to install/remove software and to perform other package management related tasks.
Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 968, in simulate trans.unauthenticated = self._simulate_helper(trans) File "/usr/lib/python2.7/dist-packages/aptdaemon/worker.py", line 1092, in _simulate_helper return depends, self._cache.required_download, \ File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 235, in required_download pm.get_archives(fetcher, self._list, self._records) SystemError: E:I wasn't able to locate a file for the ttf-mscorefonts-installer package.
This might mean you need to manually fix this package.
I'm a newbie to Ubuntu and couldn't get it fix. I tried to search for similar questions yet couldn't really fix it.