Ok, my problem seems to be similar to this, and this, but following the answers, there is not helping me. This might be because I am using Xcode 5, before I upgraded to this
I had problem with:
"Invalid Image Path - No image found at the path referenced under key 'CFBundleIcons': 'icon120x120'"
The solution was to move the icon (120x120) to a another appicon folder