debian package upgrade from older version sometimes crash
Following error sometimes appear:
ln: failed to create symbolic link ‘/var/lib/tomcat7/webapps/minerva.war’: File exists
dpkg: error processing package minerva (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
minerva
E: Sub-process /usr/bin/dpkg returned an error code (1)