I have the following problem: when I am uploading my file arquivo_fmb.xml in a migration project, the error "500 internal server error" appears.
This not happen with all xml files, just some. I already tried to use the oracle's sample xml files (employees_fmb.xml, order_fmb.xml, customers_fmb.xml) in the environment apex 4.2 (xe 11g) and apex.oracle.com. To the file orders_fmb.xml, the error is showed and the file is uploaded to project without components.
I also tried to use my own converted files, but without success (same error).
In my form happens in a file with blocks master-detail.
Any help is welcome. I need this for my final paper.
Thanks a lot.
Can you tell us about your environment?
Middle tier - glassfish / OHS / APEX Listener
If you're using Oracle XE with APEX Listener on your laptop, I suggest you upgrade to 2.0.1 - released March 2013.
This fixed a few uploading issues.