TSCOR0180 Failed to find the workspace file for file descriptor {0} because the physical name is null or empty.

A workspace file could not be found because the file descriptor did not have a physical name at runtime.

Model Administrator Response:

Either specify a "Name Physical" attribute in the file descriptor or, if the file name is returned by a tool, set the "Parameter From" attribute of the input parameter using the file descriptor to "Previous Tool".