[1.16.4]uncaught exception trying to build ShapedRecipes

[Cratthorax]

Good morning,

I'm trying to implement ShapedRecipes into my mod via DataGeneration. I'm using vanilla MC code as template, and I'm able to create a single recipe, but the code will fail if I try to build multiple recipes in the same method. Which is a bit confusing, since I pretty much do it exactly as the vanilla code. The code:

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	public class DataGenRecipe extends RecipeProvider {
	      public DataGenRecipe(DataGenerator generator) {
        super(generator);
      }
	      @Override
      protected void registerRecipes(Consumer<IFinishedRecipe> consumer) {
          brickBasalt(consumer, RegisterMain.BLOCKBRICKBASALT.get(), RegisterMain.BLOCKBASALTITEM.get());
          brickBluestone(consumer, RegisterMain.BLOCKBRICKBLUESTONE.get(), RegisterMain.BLOCKBLUESTONEITEM.get());
      }
      
      private void brickBasalt(Consumer<IFinishedRecipe> recipeConsumer, IItemProvider output, IItemProvider input) {
          ShapedRecipeBuilder
              .shapedRecipe(output)
              .key('#', input)
              .patternLine("###")
              .patternLine("###")
              .patternLine("###")
              .setGroup("matlibtab")
              .addCriterion("has_item", hasItem(input))
              .build(recipeConsumer);
      }      
      
      private void brickBluestone(Consumer<IFinishedRecipe> recipeConsumer, IItemProvider output, IItemProvider input) {
          ShapedRecipeBuilder
              .shapedRecipe(output)
              .key('#', input)
              .patternLine("###")
              .patternLine("###")
              .patternLine("###")
              .setGroup("matlibtab")
              .addCriterion("has_item", hasItem(input))
              .build(recipeConsumer);
      }           
      
}

The error log:

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[22Oct2021 05:06:36.615] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher running: args [--mod, matlib, --all, --output, D:\Ablage\Modding\Minecraft\MatEvo_1.16.4\src\generated\resources, --existing, D:\Ablage\Modding\Minecraft\MatEvo_1.16.4\src\main\resources, --gameDir, ., --launchTarget, fmluserdevdata, --fml.mcpVersion, 20201102.104115, --fml.mcVersion, 1.16.4, --fml.forgeGroup, net.minecraftforge, --fml.forgeVersion, 35.1.4]

[22Oct2021 05:06:36.640] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher 8.0.6+85+master.325de55 starting: java version 1.8.0_292 by AdoptOpenJDK
[22Oct2021 05:06:36.815] [main/INFO] [net.minecraftforge.fml.loading.FixSSL/CORE]: Added Lets Encrypt root certificates as additional trust
[22Oct2021 05:06:36.843] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.2 Source=file:/C:/Users/Marcel/.gradle/caches/modules-2/files-2.1/org.spongepowered/mixin/0.8.2/1cf212283d26f706fd3074318870bebd14d2a9ed/mixin-0.8.2.jar Service=ModLauncher Env=UNKNOWN
[22Oct2021 05:06:37.640] [main/INFO] [cpw.mods.modlauncher.LaunchServiceHandler/MODLAUNCHER]: Launching target 'fmluserdevdata' with arguments [--gameDir, ., --mod, matlib, --all, --output, D:\Ablage\Modding\Minecraft\MatEvo_1.16.4\src\generated\resources, --existing, D:\Ablage\Modding\Minecraft\MatEvo_1.16.4\src\main\resources]
[22Oct2021 05:06:37.695] [main/INFO] [net.minecraftforge.fml.DatagenModLoader/]: Initializing Data Gatherer for mods [matlib]
[22Oct2021 05:06:40.839] [modloading-worker-2/INFO] [net.minecraftforge.common.ForgeMod/FORGEMOD]: Forge mod loading, version 35.1.4, for MC 1.16.4 with MCP 20201102.104115
[22Oct2021 05:06:40.840] [modloading-worker-2/INFO] [net.minecraftforge.common.MinecraftForge/FORGE]: MinecraftForge v35.1.4 Initialized
[22Oct2021 05:06:41.083] [main/INFO] [net.minecraft.data.DataGenerator/]: Starting provider: LootTables
[22Oct2021 05:06:41.139] [main/INFO] [net.minecraft.data.DataGenerator/]: LootTables finished after 54 ms
[22Oct2021 05:06:41.139] [main/INFO] [net.minecraft.data.DataGenerator/]: Starting provider: Recipes
[22Oct2021 05:06:41.151] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
[22Oct2021 05:06:41.151] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:39)
[22Oct2021 05:06:41.151] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)
[22Oct2021 05:06:41.151] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)
[22Oct2021 05:06:41.151] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at cpw.mods.modlauncher.Launcher.run(Launcher.java:82)
[22Oct2021 05:06:41.151] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at cpw.mods.modlauncher.Launcher.main(Launcher.java:66)
[22Oct2021 05:06:41.151] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:105)
[22Oct2021 05:06:41.151] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1061]: Caused by: java.lang.reflect.InvocationTargetException
[22Oct2021 05:06:41.151] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1061]:     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[22Oct2021 05:06:41.151] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1061]:     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[22Oct2021 05:06:41.151] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1061]:     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[22Oct2021 05:06:41.151] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1061]:     at java.lang.reflect.Method.invoke(Method.java:498)
[22Oct2021 05:06:41.151] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1061]:     at net.minecraftforge.userdev.FMLUserdevDataLaunchProvider.lambda$launchService$0(FMLUserdevDataLaunchProvider.java:51)
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1061]:     at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1061]:     ... 5 more
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:644]: Caused by: java.lang.NullPointerException
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:644]:     at net.minecraft.data.ShapedRecipeBuilder.build(ShapedRecipeBuilder.java:136)
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:644]:     at net.minecraft.data.ShapedRecipeBuilder.build(ShapedRecipeBuilder.java:114)
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:644]:     at com.mofakin.matlib.datagen.DataGenRecipe.brickBluestone(DataGenRecipe.java:46)
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:644]:     at com.mofakin.matlib.datagen.DataGenRecipe.registerRecipes(DataGenRecipe.java:22)
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:644]:     at net.minecraft.data.RecipeProvider.act(RecipeProvider.java:53)
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:644]:     at net.minecraft.data.DataGenerator.run(DataGenerator.java:53)
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:644]:     at net.minecraftforge.fml.event.lifecycle.GatherDataEvent$DataGeneratorConfig.lambda$runAll$0(GatherDataEvent.java:111)
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:644]:     at cpw.mods.modlauncher.api.LamdbaExceptionUtils.lambda$rethrowConsumer$0(LamdbaExceptionUtils.java:34)
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:644]:     at java.util.HashMap$Values.forEach(HashMap.java:981)
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:644]:     at net.minecraftforge.fml.event.lifecycle.GatherDataEvent$DataGeneratorConfig.runAll(GatherDataEvent.java:107)
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:644]:     at net.minecraftforge.fml.DatagenModLoader.begin(DatagenModLoader.java:61)
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:644]:     at net.minecraft.data.Main.main(Main.java:43)
[22Oct2021 05:06:41.152] [main/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:644]:     ... 11 more

[Cratthorax]

Oups, sorry, solved. Obviously I'm supposed to provide an object of type item, and not type block.