[Bug] Incompatibility CarryOn and NeoForge latest #1012
Description
Version
Minecraft 26.3
neoforge 26.3.0.101
carryon-neoforge-26.3-2.12.1.jar
Problem
Running the server without "carryon" starts correctly. Stopping the server, adding the "carryon" mod, and then starting the server again causes the problem, and it also creates or spreads the problem to other mods. A cascading error is displayed in the console.
Log
[04nov2026 13:03:19.344] [main/ERROR] [net.neoforged.fml.startup.Entrypoint/]: Failed to start FML: net.neoforged.fml.ModLoadingException: Loading errors encountered:
- Mod File mods/carryon-neoforge-26.3-2.12.1.jar needs language provider javafml:26.3.0.37-beta or above to load
We have found 12.0
at net.neoforged.fml.loading.LanguageProviderLoader.findLanguage(LanguageProviderLoader.java:79)
at net.neoforged.fml.loading.moddiscovery.ModFile.lambda$identifyLanguage$0(ModFile.java:185)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:214)
at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1716)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:570)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:560)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:635)
at java.base/java.util.stream.AbstractPipeline.evaluateToArrayNode(AbstractPipeline.java:291)
at java.base/java.util.stream.ReferencePipeline.toArray(ReferencePipeline.java:652)
at java.base/java.util.stream.ReferencePipeline.toArray(ReferencePipeline.java:658)
at java.base/java.util.stream.ReferencePipeline.toList(ReferencePipeline.java:663)
at net.neoforged.fml.loading.moddiscovery.ModFile.identifyLanguage(ModFile.java:186)
at net.neoforged.fml.loading.FMLLoader.create(FMLLoader.java:384)
at net.neoforged.fml.startup.Entrypoint.startup(Entrypoint.java:65)
at net.neoforged.fml.startup.Server.main(Server.java:17)
Activity
Darkfiend009 commentedon Nov 5, 2026
Just came to report this as well