CPAN.pm: going to build I/IN/INGY/YAML-0.81.tar.gz Warning: No success on command[/usr/bin/perl Makefile.PL INSTALLDIRS=site] Warning (usually harmless): 'YAML' not installed, will not store persistent state INGY/YAML-0.81.tar.gz /usr/bin/perl Makefile.PL INSTALLDIRS=site -- NOT OK Running make test Make had some problems, won't test Running make install Make had some problems, won't install Could not read '/home/pi/.cpan/build/YAML-0.81-AQE1XZ/META.yml'. Falling back to other methods to determine prerequisites