How to fix the Oracle error TNS-00138: Failed to find ORACLE executable directory?

In this post, you’ll learn more about the Oracle ErrorTNS-00138: Failed to find ORACLE executable directory with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-00138: Failed to find ORACLE executable directory

Reason for the Error TNS-00138: Failed to find ORACLE executable directory

Cause: The ORACLE environment is not correctly set.

How to fix the Error TNS-00138: Failed to find ORACLE executable directory ?

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

Action: Ensure that the ORACLE environment is correctly set and the error messages file is in the correct place.