While migrating the Repository i was facing this issue and i was unable to login to OBIPS.
[2013-02-10T12:30:54.000+00:00] [OracleBIServerComponent] [ERROR:1] [] [] [ecid: 18c5ef9f7c3aec02:-1a7b1b1:138d66ca491:-8000-0000000000000cd9] [tid: 12b8] [nQSError: 13041] The GUID of user 'weblogic' does not match user reference GUID at the repository. Please ask the administrator to delete the old user reference at the repository and login again.
Resolution:
As guided in the error i opened the RPD offline deleted the reference of weblogic in identitiy and uploaded the RPD and now i was able to login to the Server.
Always the best practice is to update the GUIDs at-least monthly once.
[2013-02-10T12:30:54.000+00:00] [OracleBIServerComponent] [ERROR:1] [] [] [ecid: 18c5ef9f7c3aec02:-1a7b1b1:138d66ca491:-8000-0000000000000cd9] [tid: 12b8] [nQSError: 13041] The GUID of user 'weblogic' does not match user reference GUID at the repository. Please ask the administrator to delete the old user reference at the repository and login again.
Resolution:
As guided in the error i opened the RPD offline deleted the reference of weblogic in identitiy and uploaded the RPD and now i was able to login to the Server.
Always the best practice is to update the GUIDs at-least monthly once.