unity 4 app does not compile to ios

I was running Unity 3.5.0 with basic ios license. As soon as I upgraded to Unity 4 full trial my app won't compile for ios. I get a "EXC_BAD_ACCESS" error in xcode. The version of XCode i am using is 3.2.5 (i know its very old but its been working so far and i cannot upgrade to 4.5 because i am using os 10.6.8).

Note that i compiled a very simple application that does absolutely nothing (just a cube sitting there) to test if it was a unity app issue but the problem is still there. Its not an ios related issue either. I tried to compile it to my new ipad which runs ios 6 and to my iphone 4 on ios 4.1 with the same results.

Can someone help please? I am at a loss