|  error Library Method   Short Description: Return error message  Signature:  x.error ()    Class:  taccglOBJFile Class        Returns an error message in form of a string, 
      if an error downloading the OBJ file occured. 
      Otherwise error returns  false.   Note that  taccglOBJFile.ready returns 'error' 
	 in case of an error.
      |