1.8 changed the inheritance structure of Squids, this update resolves issues that cropped up from this change.

src/main/java/com/gmail/nossr50/runnables/skills/KrakenAttackTask.java

@@ -3,7 +3,7 @@ package com.gmail.nossr50.runnables.skills;
 import org.bukkit.Location;
 import org.bukkit.Sound;
 import org.bukkit.World;
-import org.bukkit.entity.Creature;
+import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Player;
 import org.bukkit.scheduler.BukkitRunnable;
 
@@ -11,20 +11,20 @@ import com.gmail.nossr50.config.AdvancedConfig;
 import com.gmail.nossr50.util.Misc;
 
 public class KrakenAttackTask extends BukkitRunnable {
-    private Creature kraken;
+    private LivingEntity kraken;
     private Player player;
     private Location location;
     private final boolean GLOBAL_EFFECTS = AdvancedConfig.getInstance().getKrakenGlobalEffectsEnabled();
     private final String DEFEAT_MESSAGE = AdvancedConfig.getInstance().getPlayerDefeatMessage();
     private final String ESCAPE_MESSAGE = AdvancedConfig.getInstance().getPlayerEscapeMessage();
 
-    public KrakenAttackTask(Creature kraken, Player player) {
-        this.kraken = kraken;
+    public KrakenAttackTask(LivingEntity kraken2, Player player) {
+        this.kraken = kraken2;
         this.player = player;
     }
 
-    public KrakenAttackTask(Creature kraken, Player player, Location location) {
-        this.kraken = kraken;
+    public KrakenAttackTask(LivingEntity kraken2, Player player, Location location) {
+        this.kraken = kraken2;
         this.player = player;
         this.location = location;
     }

src/main/java/com/gmail/nossr50/skills/fishing/FishingManager.java

@@ -15,7 +15,6 @@ import org.bukkit.World;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
 import org.bukkit.enchantments.Enchantment;
-import org.bukkit.entity.Creature;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.Fish;
@@ -135,7 +134,7 @@ public class FishingManager extends SkillManager {
             player.setItemInHand(null);
         }
 
-        Creature kraken = (Creature) world.spawnEntity(player.getEyeLocation(), (Misc.getRandom().nextInt(100) == 0 ? EntityType.CHICKEN : EntityType.SQUID));
+        LivingEntity kraken = (LivingEntity) world.spawnEntity(player.getEyeLocation(), (Misc.getRandom().nextInt(100) == 0 ? EntityType.CHICKEN : EntityType.SQUID));
         kraken.setCustomName(AdvancedConfig.getInstance().getKrakenName());
 
         if (!kraken.isValid()) {