Unable to build prerequisite module: Chemistry-File-SMARTS (0.21) Unable to build prerequisite module: Chemistry-Mol (0.33) Unable to build prerequisite module: Chemistry-File-SMILES (0) Unable to build prerequisite module: Chemistry-Ring (0) Unable to build prerequisite module: Chemistry-InternalCoords (0.18) Unable to build prerequisite module: Chemistry-Pattern (0.25) Chemistry-3DBuilder could not be built due to the above failed prerequisites.