bas7ener.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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
WEND without WHILE
Each WEND statement must have a matching WHILE statement.
 
Also, verify that other control structures within the
WHILE...WEND structure are correctly matched. For
example, an IF without a matching ENDIF inside the
WHILE...WEND structure will generate this error.
 
ERR Code: 30