Cause
Unexpected error occurred while trying to check for group existence.
Unexpected error occurred while trying to check for group existence.
Refer to the logs or contact Oracle Support Services. Note for advanced users: Launch the installer by passing the following flag '-ignoreInternalDriverError'.
Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/common_errormessages.htm
https://community.oracle.com/message/10061153
https://community.oracle.com/message/10569466
https://community.oracle.com/message/10258506
https://community.oracle.com/message/9643203
https://community.oracle.com/message/10290657
https://community.oracle.com/message/10735791
https://community.oracle.com/message/9844089
Browse all solutions to database errors from Oracle, MS SQL, or MySQL