I am going to start a list of mods that are working on their own, but break when sponge is installed with them. If you know of any that are not on this list, that are not conflicting with other mods, or are not just plain broken. Then reply the name of the mod and the stacktrace or exception (preferably in the form of a Gist). Or a complete log file and I will add it to the list. Also please add -Dfml.debugExit=true -Dmixin.debug=true to your command line arguments for more verbose debugging! Also when debugging, please only install the mod and sponge. No other plugins or mods.
I notice you’re using a different forge build to the one your sponge mod is using forge-1.8-11.14.3.1487-universal.jar sponge-1.8-1446-2.1DEV-515.jar
That may or may not be part of the issue, but I will assume the crash is related to a mismatch until you show it crashing when they are the same. Also make sure everything (sponge and other mods) are updated to the latest at the time of testing.
NEI worked fine with Cauldron for 1.7.10. Actually I ran a server with a modpack containing 250+ Forge Mods and 40+ Bukkit Plugins and it worked fine. In fact a vast majority of mods have code in them to integrate with NEI
@simon816 Ive reran the test with Sponge-xxx-1487-517 and forge-xxx-xxxx-1487 with the recommended and dev builds of nei. This time it didnt output a mixin folder or audit. But Ive updated the server log file’s link to the new one. Also it did not change Gliby’s voice chat either, still just broken for some unseen reason.
I have fixed the issue with Gliby’s Voice Chat. The FML PlayerEvent.PlayerLoggedInEvent wasn’t being posted to listeners of the event. The next Sponge build should work fine with the mod.