Cron graph generating fails

[vvilhonen]

I can see following in /var/log/munin/munin-graph.log and the generated html is referring to nonexisting files.

2013/01/16 07:20:09 [PERL WARNING] Use of uninitialized value in concatenation (.) or string at /usr/share/munin/munin-graph line 74.
2013/01/16 07:20:09 [PERL WARNING] Use of uninitialized value $graph_fh in <HANDLE> at /usr/share/munin/munin-graph line 75.
2013/01/16 07:20:09 [PERL WARNING] readline() on unopened filehandle at /usr/share/munin/munin-graph line 75.

Description: Ubuntu 12.10
Release: 12.10

munin:
  Installed: 2.0.2-1ubuntu2.2
  Candidate: 2.0.2-1ubuntu2.2
  Version table:
 *** 2.0.2-1ubuntu2.2 0
        500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu/ quantal-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu/ quantal-security/main amd64 Packages
        100 /var/lib/dpkg/status
     2.0.2-1ubuntu2 0
        500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu/ quantal/main amd64 Packages

[moesibaer (matthias-laug)]

I changed the line

! #my $graph_fh = new IO::File($config->{'libdir'} . "/graphs");
! my $graph_fh = new IO::File("/var/lib/munin/graphs");

seems like $config->{libdir} is not responding with the correct path (or any at all)

worked for me and graphs are generating again