migration of oracle xe 10 to xe 11 fails with wrong paths used in the import
I found out what the problem is, in my XE 10 additional tablespaces were created. When the import into 11 discovers those tablespaces do not exist yet, it tries to recreate them with the statement with which they were created in the first place, in XE 10. That explains where the wrong paths are coming from. 
I just copy &amp; pasted the create statements from the log, changed the paths, executed them, repeated the import and now it works.
A bit strange that the documentation doesn't mention this possible hiccup.