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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.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 93:  Cannot read expressions of this type
 
The Read and Readln statements accept only numeric,
string, and Boolean data. If you wish to read in a
user-defined type, such as a set or pointer, read the
value as a number and then convert it to the appropriate
value.