Unable to build prerequisite module: Data-Semantic (0) Unable to build prerequisite module: Test-CompanionClasses (0.03) Unable to build prerequisite module: Class-Accessor-Constructor (0) Unable to build prerequisite module: Class-Accessor-Complex (0) Unable to build prerequisite module: Error-Hierarchy (0) Unable to build prerequisite module: Test-Compile (0) Class-Value could not be built due to the above failed prerequisites.