qperr.hlp (Topic list)
Important Notice
The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
Error Message
 
Error 105:  Circular unit reference
 
A circular reference was made in the interface
section of a unit.
 
Circular references are allowed only in the
implementation sections of units.