What about this one?
Display Spoiler
java.lang.NoSuchMethodError: ic2.api.IReactor.getMaxHeat()I
at nuclearcontrol.ItemSensorLocationCardBase.update(ItemSensorLocationCardBase.java:139)
at nuclearcontrol.TileEntityInfoPanel.j(TileEntityInfoPanel.java:426)
at nuclearcontrol.TileEntityInfoPanel.n_(TileEntityInfoPanel.java:236)
at xd.n(World.java:2081)
at net.minecraft.client.Minecraft.k(Minecraft.java:1871)
at net.minecraft.client.Minecraft.x(Minecraft.java:825)
at net.minecraft.client.Minecraft.run(Minecraft.java:753)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 7dc6721 ----------
Thanks
EDIT: Oh... its the same, isnt it? im looking for that api to delete now...