How to fix the Oracle error NNL-00017: cannot start server, program “string” does not exist?

In this post, you’ll learn more about the Oracle ErrorNNL-00017: cannot start server, program “string” does not exist with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

NNL-00017: cannot start server, program “string” does not exist

Reason for the Error NNL-00017: cannot start server, program “string” does not exist

Cause: The user issued a STARTUP request, but the control program was unable to start the server because it was unable to find the server executable.

How to fix the Error NNL-00017: cannot start server, program “string” does not exist ?

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

Action: Make sure that a copy of the server executable exists in your system’s oracle executable directory.