• We have updated our Community Code of Conduct. Please read through the new rules for the forum that are an integral part of Paradox Interactive’s User Agreement.
Yes, is a installation problem

You need install in the same path game

For example:
1 - Install hoi2 arma or AoD in c:\iron or c:\games\iron
2 - Install Iron Cross in c:\iron or c:\games\iron
3 - Play
 
I'm getting the same problem, but for DH. I installed it to the same folder, and IC appears in the mods folder, but every time i launch it i get that error. It works fine with AOD (i ended up getting them both anyways >.<) but flakes out when i try to start it with DH.
 
Yeah i did install 1.1 and 1.1 rev, I've reinstalled so many times and i can't figure out what causes it. AOD+IC works fine, but everytime i launch DH+IC i get that error.
 
Yeah i did install 1.1 and 1.1 rev, I've reinstalled so many times and i can't figure out what causes it. AOD+IC works fine, but everytime i launch DH+IC i get that error.

I have the same problem :/ It worked fine with AOD but the same error on DH

Reinstall everything and be sure to install the patch 1.01 prior to install the Rev6. The Rev6 is compatible with AoD 1.07