first 1.11.1 attempt

src/main/java/com/sosnitzka/taiga/traits/TraitCrushing.java

@@ -3,10 +3,14 @@ package com.sosnitzka.taiga.traits;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.init.Blocks;
 import net.minecraft.item.ItemStack;
+import net.minecraft.util.NonNullList;
 import net.minecraft.util.text.TextFormatting;
 import net.minecraftforge.event.world.BlockEvent;
+import slimeknights.mantle.util.RecipeMatch;
 import slimeknights.tconstruct.library.traits.AbstractTrait;
 
+import java.util.Optional;
+
 public class TraitCrushing extends AbstractTrait {
 
     public TraitCrushing() {
@@ -32,4 +36,8 @@ public class TraitCrushing extends AbstractTrait {
         }
     }
 
+    @Override
+    public Optional<RecipeMatch.Match> matches(NonNullList<ItemStack> stacks) {
+        return null;
+    }
 }