php-fastcgi always exits.. resulting in 502 bad gateway

[Lintu]

So I removed php again, putting dotdeb into sources and commenting
debian out, trying to reinstall php5-common, but this appears:

Package php5-common is not available, but is referred to by another
package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source


What am I doing wrong now? I did update apt-get after editing sources

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,215576,215659#msg-215659