Unable to build prerequisite module: DateTime-Format-MySQL (0) Unable to build prerequisite module: Rose-Object (0.82) Unable to build prerequisite module: DateTime-Format-Pg (0.11) Unable to build prerequisite module: Rose-DateTime (0.532) Unable to build prerequisite module: Bit-Vector (6.4) Unable to build prerequisite module: YAML-Syck (0) Rose-DB could not be built due to the above failed prerequisites.