Update

src/main/java/net/fabricmc/example/ExampleMod.java

@@ -29,6 +29,10 @@ public class ExampleMod implements ModInitializer {
 	// Implemented by Jerbyl
 	public static final Block BLOCK_OF_CHARCOAL = new Block(FabricBlockSettings.of(Material.STONE).hardness(5.0f));
 
+	// Charcoal block
+	// Implemented by Jerbyl
+	public static final Block EXPERIENCE_CAGE = new Block(FabricBlockSettings.of(Material.STONE).hardness(5.0f));
+
 	// Gold-plated diamond armor items
 	// Implemented by Jerbyl
 	public static final Item GOLD_DIAMOND_HELMET = new ArmorItem(GoldDiamond.GOLD_DIAMOND, EquipmentSlot.HEAD, (new Item.Settings().group(ItemGroup.COMBAT)));

src/main/resources/data/examplemod/recipes/experience_cage.json

@@ -11,7 +11,7 @@
     },
     "B": {
       "item": "minecraft:iron_bars"
-    },
+    }
   },
   "result": {
     "item": "examplemod:experience_cage"

src/main/resources/data/examplemod/recipes/flesh_to_leather.json

@@ -1,6 +1,6 @@
 {
   "type": "minecraft:smelting",
-  "ingredients": {
+  "ingredient": {
     "item": "minecraft:rotten_flesh"
   },
   "result": {