Same problem here after a squeeze --> wheezy upgrade :
I get :
E: The value 'squeeze-backports' is invalid for APT::Default-Release as such a release is not available in the sources
E: _cache->open() failed, please report.
When trying to open synaptic, it then closes.
I have no apt.conf, no /root/.synaptic folder and here is my /etc/apt/sources.list :
Same problem here after a squeeze --> wheezy upgrade :
I get : Release as such a release is not available in the sources
E: The value 'squeeze-backports' is invalid for APT::Default-
E: _cache->open() failed, please report.
When trying to open synaptic, it then closes.
I have no apt.conf, no /root/.synaptic folder and here is my /etc/apt/ sources. list :
deb http:// mirror. switch. ch/ftp/ mirror/ debian/ wheezy main contrib non-free mirror. switch. ch/ftp/ mirror/ debian/ wheezy main contrib non-free
deb-src http://