To install CPANPLUS::Internals::Source::CPANMetaDB, copy and paste the appropriate command in to your terminal.
cpanm
cpanm CPANPLUS::Internals::Source::CPANMetaDB
CPAN shell
perl -MCPAN -e shell
install CPANPLUS::Internals::Source::CPANMetaDB
For more information on module installation, please visit the detailed CPAN module installation guide.