How to fix the Oracle error PGU-30012: invalid language environment (string), default used?

In this post, you’ll learn more about the Oracle ErrorPGU-30012: invalid language environment (string), default used with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PGU-30012: invalid language environment (string), default used

Reason for the Error PGU-30012: invalid language environment (string), default used

Cause: Before complete initialization of LMS functions, the environment variable LANGUAGE specified an invalid Oracle NLS language . The language environment variable SSTDLANG setting was used as the default.

How to fix the Error PGU-30012: invalid language environment (string), default used ?

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

Action: Correct the LANGUAGE environment variable to specify a valid Oracle NLS Language.