I added mekanism 7 to FTB infinity 1.2.0 ... worked fine. Now when i go to add Mekanism 8 i get an immediate client crash. It seemed like it was an AOBD problem so i updated that to 2.5.0 and now im getting yet another crash.. here is the 2 crashes i got so far...

Before AOBD update: http://pastebin.com/muF0PWQx
After: http://pastebin.com/e20QWWsc

I take that back. Looks like Nividica and Aidan worked it out in a dev build Nividica/ThaumicEnergistics#147

That seems to be an issue on the Thaumic Energistics side of things #2259