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Possible Duplicate:
Cannot install any software from the Software Center due to ttf-mscorefonts-installer package error

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/", line 968, in simulate
    trans.unauthenticated = self._simulate_helper(trans)
  File "/usr/lib/python2.7/dist-packages/aptdaemon/", line 1092, in _simulate_helper
    return depends, self._cache.required_download, \
  File "/usr/lib/python2.7/dist-packages/apt/", 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.

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marked as duplicate by jokerdino, RobotHumans, Ringtail, fossfreedom Apr 2 '12 at 7:23

This question was marked as an exact duplicate of an existing question.

This seems to be the error:

E:I wasn't able to locate a file for the ttf-mscorefonts-installer package.

Try to reconfigure unpacked packages first.

sudo dpkg --configure -a

And then install it:

sudo aptitude install ttf-mscorefonts-installer
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