Updated for API changes.

worldedit-sponge/build.gradle

@@ -21,7 +21,7 @@ apply plugin: 'net.minecrell.vanilla.server.library'
 
 dependencies {
     compile project(':worldedit-core')
-    compile 'org.spongepowered:spongeapi:5.0.0-SNAPSHOT'
+    compile 'org.spongepowered:spongeapi:5.1.0-SNAPSHOT'
     testCompile group: 'org.mockito', name: 'mockito-core', version:'1.9.0-rc1'
 }
 
@@ -36,7 +36,7 @@ sponge {
 
 minecraft {
     version = "1.10.2"
-    mappings = 'snapshot_20160628'
+    mappings = "snapshot_20161029"
     runDir = 'run'
 }
 

worldedit-sponge/src/main/java/com/sk89q/worldedit/sponge/SpongeWorld.java

@@ -177,7 +177,7 @@ public abstract class SpongeWorld extends AbstractWorld {
     @Override
     public BaseBiome getBiome(Vector2D position) {
         checkNotNull(position);
-        return new BaseBiome(IDHelper.resolve(getWorld().getBiome(position.getBlockX(), position.getBlockZ())));
+        return new BaseBiome(IDHelper.resolve(getWorld().getBiome(position.getBlockX(), 0, position.getBlockZ())));
     }
 
     @Override
@@ -185,7 +185,7 @@ public abstract class SpongeWorld extends AbstractWorld {
         checkNotNull(position);
         checkNotNull(biome);
 
-        getWorld().setBiome(position.getBlockX(), position.getBlockZ(), IDHelper.resolveBiome(biome.getId()));
+        getWorld().setBiome(position.getBlockX(), 0, position.getBlockZ(), IDHelper.resolveBiome(biome.getId()));
         return true;
     }