Open 2.1.0: FTB Infinity troubles

[NEOTYKE]

Version:
2.1.0

What is the bug:
Well I love playing FTB Infinity but i add Mekanism and Minechem, which is usually no troubles. It loads up just fine, but then when i load my world it says "1 Item found missing click continue to remove item" "dustSteel"
and if i click yes to just remove it right when i see a glimpse of my world and about to start moving, it crashes. and i have made sure that all the mods i added were up to date.

Mod & Version:


Paste.feed-the-beast.com log:


Can it be repeated:


Known Fix:

 

[NEOTYKE]

I figured it out, it was because i made the world like 10 seconds before i added the mods, i created a new world worked fine