unable to get a game started with my friend

[the1killer03]

we both have the current game and we can play with AI's by our self but when we'd join a game together and once the map loads the game ends and says error sync and will send us back to main menu

[Dreamerbg]

Your mod versions are not the same.
One of you is still on 1.7.0.1. Both of you must update the mod to 1.7.0.2 version.