FILE NAME ERROR 22

This report is given if:

• the user attempts to ⎕FCREATE using the name of an existing file.
• the user attempts to ⎕FTIE or ⎕FSTIE a non-existent file, or a file that is not a component file.
• the user attempts to ⎕FERASE a component file or ⎕NERASE a native file with a name other than the EXACT name that was used when the file was tied.