In this post, you’ll learn more about the Oracle ErrorCLSGN-00201: string first self-check name resolution failed. with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
CLSGN-00201: string first self-check name resolution failed.
Reason for the Error CLSGN-00201: string first self-check name resolution failed.
GNS was unable to resolve the name that it uses for the self-check the first time after it started.
How to fix the Error CLSGN-00201: string first self-check name resolution failed. ?
You can fix this error in Oracle by following the below steps
Examine the logs for more information about the error.