Comment 4 for bug 1504695

Your new issue still does not seem to be caused by software-center, especially since it isn't even installed.

These pages may help with the "you have held broken packages" problem.
<https://askubuntu.com/questions/223237/unable-to-correct-problems-you-have-held-broken-packages>
<https://askubuntu.com/questions/164587/how-can-you-unhold-remove-a-hold-on-a-package>