I installed 200+ mods for my modpack and my self and this error come up:
pw.mods.fml.common.LoaderException: java.lang.RuntimeException: Invalid id 9884 - maximum id range exceeded.By reading this I can tell that Forge set up ID limits. Is there a way to increase it, or remove/disable it?
81 Answer
Minecraft actually allows item IDs up to 32767, but I believe block IDs only go up to 4096. You have a mod that is trying to add a block with ID 9884 - which is greater than the maximum block ID.
You might need to install another Forge mod like this one that extends the possible block IDs up.