I recently got an issue when I believe the launcher for MC was updated??
[15:18:53] [main/INFO] [FML]: Forge Mod Loader version 22.214.171.1244 for Minecraft 1.7.10 loading
[15:18:53] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_25, running on Windows 8.1:amd64:6.3, installed at C:\Program Files (x86)\Minecraft\runtime\jre-x64\1.8.0_25
[15:18:53] [main/WARN] [FML]: The coremod mods.battlegear2.coremod.BattlegearLoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft