All Oracle Error CodesOracle DBA Forum

O2I-00101:

Invalid value for the USERID parameter
Cause: The value supplied for the USERID parameter is not a legal <username>/<password>[@<databasename>] string.
Action: Set the USERID option to the correct <username>/<password> or <username>/<password>@<database name> combination to use when connecting to the database. If you have an OPS$ account, you may instead omit the USERID option, in which case OTT will attempt to connect to the database using the userid OPS$<username>. The USERID option may be specified on the command line or in a CONFIG file.