Munin and “Can’t use an undefined value as an ARRAY reference”
I recently came across a rather obscure and vague error in Munin: Can’t use an undefined value as an ARRAY reference at /usr/share/perl5/Munin/Master/HTMLOld.pm It seems there are quite a few error reports on this, with very different suggestions on how to solve the problem – and for some, the problem was never solved. In […]