Hi, so I'm new to this modeling stuff, watched a tutorial last night and I'm getting the hang of making the light fixture and the emissive part but I can not get it to export it gives me some errors

http://gyazo.com/9ff515dccec982c413c75080ff0e2e75 but there is only one instance of extra_1 the parts in it are as followed http://gyazo.com/a67115070aa4db3cbfcaf554644139b9

if anyone could help me that would be awesome thank you!!!

You have multiple things with the same name 

Change extra_1 to extra_10

Just did that, Told me the same thing.

This has been fixed by myself...thanks for trying..