Comment 47 for bug 127263

I have followed all the indications but I still experiment the same problem ; I want to update to Gutsy and update-manager doesn't show me the update button.
I deleted my ~/.update-manager-core/meta-release, my ~/.update-manager/meta-release but it didn't fix anything. And I have no /var/lib/update-manager/meta-release. Moreover, I'm behind a proxy.
I've downloaded and installed the versions of update-manager and update-manager-core on http://people.ubuntu.com/~mvo/update-manager/ but it didn't change anything. I've also tried to follow http://www.go2linux.org/upgrading-to-gutsy (I don't have the message "current dist not found in meta-release") but it still don't help ; this update button remains invisible !