** Summary changed:
- Error: cannot upgrade Quantal to Precise
+ Error: cannot upgrade to Quantal from Precise
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https://bugs.launchpad.net/bugs/999013
Title:
Error: cannot upgrade to
I have experienced this as well, but I'm not sure that it should be
called a bug because the Update Manager detects the condition and
handles it with a dialog.
Using sudo apt-get dist-upgrade does the trick - but only partially
because then you get to a point where some of the packages cannot be
