Ora 12154 error

Question

I recently deploy one web application in one of my development servers. I\'m using oracle, asp.net and c#. When I run the application in the server everything works fine, bu

Answer 1

Had the same problem. Turns out the TNSNAMES.ORA in out deployment environment had a different ADDRESS_NAME and SID/SERVICE_NAME ,and the application was configured to use the SID - which caused the problem.

Your connection string must contain the ADDRESS_NAME and not the SID