When a Ant task 'petals-configure-...' is used with an empty attribute 'file' or 'outputFile', the error message is not clear: "File '' is not a valid archive (zip or jar required)".
Replace it by something like: "Empty attribute 'file'"/"Empty attribute 'outputFile'"
When a Ant task 'petals-configure-...' is used with an empty attribute 'file' or 'outputFile', the error message is not clear: "File '' is not a valid archive (zip or jar required)".
Replace it by something like: "Empty attribute 'file'"/"Empty attribute 'outputFile'"