How to fix the Oracle error PGU-00388: cannot start PGAU in screen mode; check if values are legal:?

In this post, you’ll learn more about the Oracle ErrorPGU-00388: cannot start PGAU in screen mode; check if values are legal: with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PGU-00388: cannot start PGAU in screen mode; check if values are legal:

Reason for the Error PGU-00388: cannot start PGAU in screen mode; check if values are legal:

Cause: A variable was not properly set.

How to fix the Error PGU-00388: cannot start PGAU in screen mode; check if values are legal: ?

You can fix this error in Oracle by following the below steps

Action: Check the values listed by PGAU to see if they are correct.