A table, Extended Data Type, Base Enum or class called TableName already exists. Import of Table aborted

SOLVED : A table, Extended Data Type, Base Enum or class called TableName already exists. Import of Table aborted.

If during import of XPO file, we get the following error.

 A table, Extended Data Type, Base Enum or class called TableName already exists. Import of Table aborted.

This error is basically due to cache and ID mismatch problems for the related ojbects, 

Solution

Cache files - close the client, delete files .AUC files in cache directory:

* C:\Documents and Settings\[USERNAME]\Local Settings\Application Data for Win Xp or Server 2003,

* C:\Users\[USERNAME]\AppData\Local for Vista/Win7.

Reopen the client, try import again.