| ERROR | Unable to open list file |
| CAUSE | The precompiler could not open the listing file. This message can result from many causes. For example, o) A pathname for a specified listing file contains a non-existent directory. o) An operating-system error occured because the file system or disk is full. o) Write permission on the specified directory has not been granted. |
| ACTION | Track down the cause of the error, as suggested above, and correct it. |