Sometimes I see this:
Operation """": no method found, argument in overloaded package version
at C:\strawberry5.10.0\perl\lib/Test/Reporter.pm line 289
It is failing at this line:
my $perl_version = sprintf("v%vd",$^V);
This seems to be the same bug as
http://code.google.com/p/test-reporter/issues/detail?id=22