Discoverer 11g When Connecting to Desktop/Administrator Error: "Failed to connect to database - ORA-12557: TNS: protocol adapter not loadable" (Doc ID 2134398.1)

Last updated on JULY 18, 2017

Applies to:

Oracle Discoverer - Version 11.1.1.3.0 and later
Information in this document applies to any platform.

Symptoms

On 11.1.1.3.0 version of Discoverer Desktop/Administrator, when attempting to connect, the following error occurs:

For example -

"Unable to connect to: <user>:@<SID>
Failed to connect to database - ORA-12557: TNS: protocol adapter not loadable"

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms