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After an upgrade from Debian Squeeze (stable) to Wheezy (testing), Synaptic fails with the following error:

E: The value 'stable' is invalid for APT::Default-Release as such a release is not available in the sources
E: _cache->open() failed, please report.

However, this value is set nowhere in /etc. How do I fix this error?

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1 Answer 1

up vote 4 down vote accepted

Have a look into /root/.synaptic/synaptic.conf. Look for the DefaultDistro line and change its value, e.g. replace stable with wheezy.

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