Problems with compiling/running

[DecDuck]

Trying to change the loading screen to something custom, but I can't test the mod. I get this error:

 java.lang.RuntimeException: Failed to instantiate language adapter: mod-loading-screen:totallyARealLanguageAdapter
	at net.fabricmc.loader.impl.FabricLoaderImpl.setupLanguageAdapters(FabricLoaderImpl.java:441) ~[fabric-loader-0.14.21.jar:?]
	at net.fabricmc.loader.impl.FabricLoaderImpl.finishModLoading(FabricLoaderImpl.java:349) ~[fabric-loader-0.14.21.jar:?]
	at net.fabricmc.loader.impl.FabricLoaderImpl.freeze(FabricLoaderImpl.java:112) ~[fabric-loader-0.14.21.jar:?]
	at net.fabricmc.loader.impl.launch.knot.Knot.init(Knot.java:149) ~[fabric-loader-0.14.21.jar:?]
	at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:68) ~[fabric-loader-0.14.21.jar:?]
	at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) ~[fabric-loader-0.14.21.jar:?]
	at net.fabricmc.devlaunchinjector.Main.main(Main.java:86) ~[?:?]

Any ideas?

[Gaming32]

Are you running this from an IDE? Are there other mods? Is that the entire error message?

[DecDuck]

I'm running from IntelliJ Ultimate, and there's an error about not being able to load the language adaptor. No other mods other than the ones defined in build.gradle

[Gaming32]

Ah. I've never been able to run Mod Loading Screen from the IDE. I always just build it and run it in a Prism instance.

[DecDuck]

Seems to have worked. Any idea why gradle runClient doesn't work?

[Gaming32]

Loom bug perhaps?