This means that the exported version was higher and the imported version cannot understand it.
So the import dump cannot be used any more in 10.2.0.4 , workaround to redo the export process with the option "version=10.2" to the expdp command.
What about when you cannot request another dump , may be the other source is a partner and they bill you for additional effort ?
Yes you can still get it done , by creating a local 11.1.0.6 dummy environment and then importing the dump into it. Now you have the dump inside a 11g environment , export it from the dummy environment with the option "version=10.2" and try importing into the 10.2.0.4 environment.
It worked for me and I hope this help.
