Caused by: java.lang.IllegalStateException: Missing required tags: minecraft:fluid:minecraft:chocolate,minecraft:fluid:minecraft:dark_chocolate,minecraft:fluid:minecraft:milk_chocolate

I am having an issue where it won't load into a world because I am missing these tags, I have commented out any code that adds tags to my fluids and I wasn't getting these issues beforehand.

Just in case I will go ahead and post my FluidTagsProvider code, my ModTags code as well as my DataGenerator code

public class ModFluidTagsProvider extends FluidTagsProvider {
    public ModFluidTagsProvider(DataGenerator gen, @Nullable ExistingFileHelper existingFileHelper) {
        super(gen, chocolate.MODID, existingFileHelper);
    }


    @Override
        protected void registerTags() {
            getOrCreateBuilder(ModTags.Fluids.FLUIDS_CHOCOLATE)
                    .add(ModFluids.FLOWINGMELTEDCHOCOLATE.get()).add(ModFluids.MELTEDCHOCOLATE.get())
                    .add(ModFluids.FLOWINGMILKMELTEDCHOCOLATE.get()).add(ModFluids.MILKMELTEDCHOCOLATE.get())
                    .add(ModFluids.FLOWINGDARKMELTEDCHOCOLATE.get()).add(ModFluids.MELTEDDARKCHOCOLATE.get());
        }
}

public static final class Fluids {
        public static final ITag.INamedTag<Fluid> FLUIDS_CHOCOLATE = forge("fluids/chocolate");


        private static ITag.INamedTag<Fluid> forge(String path) {
            return FluidTags.makeWrapperTag(new ResourceLocation("forge", path).toString());
        }
        private static ITag.INamedTag<Fluid> mod(String path) {
            return FluidTags.makeWrapperTag(new ResourceLocation(chocolate.MODID, path).toString());
        }
    }

public class DataGenerators {
    @SubscribeEvent
    public static void gatherData(GatherDataEvent event) {
        DataGenerator gen = event.getGenerator();
        ExistingFileHelper existingFileHelper = event.getExistingFileHelper();

        gen.addProvider(new ModBlockStateProvider(gen, existingFileHelper));
        gen.addProvider(new ModItemModelProvider(gen, existingFileHelper));
        gen.addProvider(new ModRecipeProvider(gen));

        ModBlockTagsProvider blockTags = new ModBlockTagsProvider(gen, existingFileHelper);
        gen.addProvider(blockTags);
        gen.addProvider(new ModItemTagsProvider(gen, blockTags, existingFileHelper));

        ModFluidTagsProvider fluidTags = new ModFluidTagsProvider(gen, existingFileHelper);
        gen.addProvider(fluidTags);
    }
}

Longer error

[23:31:23] [Render thread/WARN] [minecraft/Minecraft]: Failed to load datapacks, can't proceed with server load
java.util.concurrent.ExecutionException: java.lang.IllegalStateException: Missing required tags: minecraft:fluid:minecraft:chocolate,minecraft:fluid:minecraft:dark_chocolate,minecraft:fluid:minecraft:milk_chocolate
	at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:395) ~[?:?] {}
	at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2063) ~[?:?] {}
	at net.minecraft.client.Minecraft.reloadDatapacks(Minecraft.java:1911) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.loadWorld(Minecraft.java:1759) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.loadWorld(Minecraft.java:1728) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.WorldSelectionList$Entry.func_214443_e(WorldSelectionList.java:364) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.WorldSelectionList$Entry.func_214438_a(WorldSelectionList.java:273) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.WorldSelectionList$Entry.mouseClicked(WorldSelectionList.java:228) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.widget.list.AbstractList.mouseClicked(AbstractList.java:309) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.INestedGuiEventHandler.mouseClicked(INestedGuiEventHandler.java:31) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHelper.lambda$mouseButtonCallback$0(MouseHelper.java:92) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.Screen.wrapScreenError(Screen.java:427) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHelper.mouseButtonCallback(MouseHelper.java:90) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHelper.lambda$registerCallbacks$4(MouseHelper.java:185) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.util.concurrent.ThreadTaskExecutor.execute(ThreadTaskExecutor.java:86) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.client.MouseHelper.lambda$registerCallbacks$5(MouseHelper.java:184) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
	at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.2.jar:build 10] {}
	at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:3174) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
	at com.mojang.blaze3d.systems.RenderSystem.limitDisplayFPS(RenderSystem.java:112) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1025) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:612) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:184) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64) ~[?:?] {}
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
	at java.lang.reflect.Method.invoke(Method.java:564) ~[?:?] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:52) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.9.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.9.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:105) [forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {}
Caused by: java.lang.IllegalStateException: Missing required tags: minecraft:fluid:minecraft:chocolate,minecraft:fluid:minecraft:dark_chocolate,minecraft:fluid:minecraft:milk_chocolate
	at net.minecraft.tags.NetworkTagManager.lambda$reload$1(NetworkTagManager.java:47) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B}
	at java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:714) ~[?:?] {}
	at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478) ~[?:?] {}
	at net.minecraft.resources.AsyncReloader.lambda$new$3(AsyncReloader.java:66) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading}
	at net.minecraft.util.concurrent.ThreadTaskExecutor.run(ThreadTaskExecutor.java:139) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.util.concurrent.RecursiveEventLoop.run(RecursiveEventLoop.java:22) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading}
	at net.minecraft.util.concurrent.ThreadTaskExecutor.driveOne(ThreadTaskExecutor.java:109) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.util.concurrent.ThreadTaskExecutor.driveUntil(ThreadTaskExecutor.java:122) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.client.Minecraft.reloadDatapacks(Minecraft.java:1910) ~[forge-1.16.5-36.1.3_mapped_snapshot_20210309-1.16.5-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	... 31 more
Caused by: java.lang.IllegalStateException: Missing required tags: minecraft:fluid:minecraft:chocolate,minecraft:fluid:minecraft:dark_chocolate,minecraft:fluid:minecraft:milk_chocolate

 

Are these the only instances of tags within your mod? It's suggesting that there are minecraft entries for your mod tags or registry objects.

You need to make a optional tag, not a required one.

Hence why we added functions to these things specifically for this...

2 hours ago, LexManos said:

You need to make a optional tag, not a required one.

Hence why we added functions to these things specifically for this...

I didn't realize I was forcing the tags when I had it in my ModFluids class, and to be honest, completely forgot about them. Its fixed now, thank you