This happend after installing the new versions of both of the DragonAPI and then Rotarycraft on my self created modpack. For me it seems like Rotarycraft and Pneumaticcraft are interfering with each other. It just happens on my Forge server, Minecraft launches with both the mods installed just fine.
http://pastebin.com/J3JSZqt1
This happend after installing the new versions of both of the DragonAPI and then Rotarycraft on my self created modpack. For me it seems like Rotarycraft and Pneumaticcraft are interfering with each other. It just happens on my Forge server, Minecraft launches with both the mods installed just fine.