Unable to build prerequisite module: Data-Compare (0) Unable to build prerequisite module: Test-Strict (0) Unable to build prerequisite module: Data-TreeDumper (0) Unable to build prerequisite module: Sub-Exporter (0) Unable to build prerequisite module: Test-Spelling (0) Unable to build prerequisite module: Test-Block (0) Unable to build prerequisite module: Test-Warn (0) Unable to build prerequisite module: Test-Dependencies (0) Unable to build prerequisite module: Test-Exception (0) Unable to build prerequisite module: Test-Perl-Critic (0) Scalar-Cycle-Manual could not be built due to the above failed prerequisites.