Unable to build prerequisite module: Sub-Install (0) Unable to build prerequisite module: Perl6-Export-Attrs (0) Unable to build prerequisite module: IO-Interactive (0) Unable to build prerequisite module: Params-Util (0) Unable to build prerequisite module: IO-Prompt (0.99.4) Unable to build prerequisite module: YAML-Syck (0) Unable to build prerequisite module: namespace-clean (0) Unable to build prerequisite module: Getopt-Euclid (0) Modwheel could not be built due to the above failed prerequisites.