How to fix the Oracle error TNS-01201: Listener cannot find executable string for SID string?

In this post, you’ll learn more about the Oracle ErrorTNS-01201: Listener cannot find executable string for SID string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-01201: Listener cannot find executable string for SID string

Reason for the Error TNS-01201: Listener cannot find executable string for SID string

Cause: The executable for the Oracle dedicated server process cannot be found.

How to fix the Error TNS-01201: Listener cannot find executable string for SID string ?

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

Action: Check the appropriate SID_DESC in LISTENER.ORA to make sure that the ORACLE_HOME component is pointing to a valid location. If this component is not set, then check the value of the ORACLE_HOME environment variable.