Dont even builds the project.

Everytime, when i try to build the workspace, i get this result:

This mapping 'snapshot_20171003' was designed for MC 1.12! Use at your own peril.
:deobfCompileDummyTask
:getVersionJson
:extractUserdev UP-TO-DATE
:downloadClient SKIPPED
:downloadServer SKIPPED
:splitServerJar SKIPPED
:mergeJars SKIPPED
:applyBinaryPatches SKIPPED
:deobfProvidedDummyTask
:extractDependencyATs SKIPPED
:extractMcpData SKIPPED
:extractMcpMappings SKIPPED
:genSrgs SKIPPED
:deobfMcMCP SKIPPED
:sourceApiJava UP-TO-DATE
:compileApiJava NO-SOURCE
:processApiResources NO-SOURCE
:apiClasses UP-TO-DATE
:sourceMainJava UP-TO-DATE
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\ClientProxyidks_dreams.java:5: error: cannot find symbol 
      
   public void init(FMLInitializationEvent event) {
                    ^
  symbol:   class FMLInitializationEvent
  location: class ClientProxyidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\ClientProxyidks_dreams.java:9: error: cannot find symbol 
      
   public void preInit(FMLPreInitializationEvent event) {
                       ^
  symbol:   class FMLPreInitializationEvent
  location: class ClientProxyidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\ClientProxyidks_dreams.java:14: error: cannot find symbol 
      
   public void postInit(FMLPostInitializationEvent event) {
                        ^
  symbol:   class FMLPostInitializationEvent
  location: class ClientProxyidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\ClientProxyidks_dreams.java:18: error: cannot find symbol 
      
   public void serverLoad(FMLServerStartingEvent event) {
                          ^
  symbol:   class FMLServerStartingEvent
  location: class ClientProxyidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\IProxyidks_dreams.java:4: error: cannot find symbol 
      
   void preInit(FMLPreInitializationEvent event);
                ^
  symbol:   class FMLPreInitializationEvent
  location: interface IProxyidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\IProxyidks_dreams.java:6: error: cannot find symbol 
      
   void init(FMLInitializationEvent event);
             ^
  symbol:   class FMLInitializationEvent
  location: interface IProxyidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\IProxyidks_dreams.java:8: error: cannot find symbol 
      
   void postInit(FMLPostInitializationEvent event);
                 ^
  symbol:   class FMLPostInitializationEvent
  location: interface IProxyidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\IProxyidks_dreams.java:10: error: cannot find symbol 
      
   void serverLoad(FMLServerStartingEvent event);
                   ^
  symbol:   class FMLServerStartingEvent
  location: interface IProxyidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:18: error: cannot find symbol 
      
public class Elementsidks_dreams implements IFuelHandler, IWorldGenerator {
                                            ^
  symbol: class IFuelHandler
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:18: error: cannot find symbol 
      
public class Elementsidks_dreams implements IFuelHandler, IWorldGenerator {
                                                          ^
  symbol: class IWorldGenerator
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:20: error: cannot find symbol 
      
   protected final List<Supplier<Block>> blocks = new ArrayList<>();
                                 ^
  symbol:   class Block
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:21: error: cannot find symbol 
      
   protected final List<Supplier<Item>> items = new ArrayList<>();
                                 ^
  symbol:   class Item
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:22: error: cannot find symbol 
      
   protected final List<Supplier<Biome>> biomes = new ArrayList<>();
                                 ^
  symbol:   class Biome
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:23: error: cannot find symbol 
      
   protected final List<Supplier<EntityEntry>> entities = new ArrayList<>();
                                 ^
  symbol:   class EntityEntry
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:24: error: cannot find symbol 
      
   protected final List<Supplier<Potion>> potions = new ArrayList<>();
                                 ^
  symbol:   class Potion
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:26: error: cannot find symbol 
      
   public void preInit(FMLPreInitializationEvent event) {
                       ^
  symbol:   class FMLPreInitializationEvent
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:42: error: package RegistryEvent does not exist 
      
   public void registerSounds(RegistryEvent.Register<net.minecraft.util.SoundEvent> event) {
                                           ^
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:52: error: cannot find symbol 
      
   public void generate(Random random, int chunkX, int chunkZ, World world, IChunkGenerator cg, IChunkProvider cp) {
                                                               ^
  symbol:   class World
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:52: error: cannot find symbol 
      
   public void generate(Random random, int chunkX, int chunkZ, World world, IChunkGenerator cg, IChunkProvider cp) {
                                                                            ^
  symbol:   class IChunkGenerator
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:52: error: cannot find symbol 
      
   public void generate(Random random, int chunkX, int chunkZ, World world, IChunkGenerator cg, IChunkProvider cp) {
                                                                                                ^
  symbol:   class IChunkProvider
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:57: error: cannot find symbol 
      
   public int getBurnTime(ItemStack fuel) {
                          ^
  symbol:   class ItemStack
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:88: error: cannot find symbol 
      
   public <T extends IMessage, V extends IMessage> void addNetworkMessage(Class<? extends IMessageHandler<T, V>> handler, Class<T> messageClass,
                     ^
  symbol:   class IMessage
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:88: error: cannot find symbol 
      
   public <T extends IMessage, V extends IMessage> void addNetworkMessage(Class<? extends IMessageHandler<T, V>> handler, Class<T> messageClass,
                                         ^
  symbol:   class IMessage
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:88: error: cannot find symbol 
      
   public <T extends IMessage, V extends IMessage> void addNetworkMessage(Class<? extends IMessageHandler<T, V>> handler, Class<T> messageClass,
                                                                                          ^
  symbol:   class IMessageHandler
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:89: error: cannot find symbol 
      
         Side... sides) {
         ^
  symbol:   class Side
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:111: error: cannot find symbol 
      
   public List<Supplier<Block>> getBlocks() {
                        ^
  symbol:   class Block
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:115: error: cannot find symbol 
      
   public List<Supplier<Item>> getItems() {
                        ^
  symbol:   class Item
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:119: error: cannot find symbol 
      
   public List<Supplier<Biome>> getBiomes() {
                        ^
  symbol:   class Biome
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:123: error: cannot find symbol 
      
   public List<Supplier<EntityEntry>> getEntities() {
                        ^
  symbol:   class EntityEntry
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:127: error: cannot find symbol 
      
   public List<Supplier<Potion>> getPotions() {
                        ^
  symbol:   class Potion
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:146: error: cannot find symbol 
      
      public void init(FMLInitializationEvent event) {
                       ^
  symbol:   class FMLInitializationEvent
  location: class ModElement
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:149: error: cannot find symbol 
      
      public void preInit(FMLPreInitializationEvent event) {
                          ^
  symbol:   class FMLPreInitializationEvent
  location: class ModElement
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:152: error: cannot find symbol 
      
      public void generateWorld(Random random, int posX, int posZ, World world, int dimID, IChunkGenerator cg, IChunkProvider cp) {
                                                                   ^
  symbol:   class World
  location: class ModElement
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:152: error: cannot find symbol 
      
      public void generateWorld(Random random, int posX, int posZ, World world, int dimID, IChunkGenerator cg, IChunkProvider cp) {
                                                                                           ^
  symbol:   class IChunkGenerator
  location: class ModElement
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:152: error: cannot find symbol 
      
      public void generateWorld(Random random, int posX, int posZ, World world, int dimID, IChunkGenerator cg, IChunkProvider cp) {
                                                                                                               ^
  symbol:   class IChunkProvider
  location: class ModElement
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:155: error: cannot find symbol 
      
      public void serverLoad(FMLServerStartingEvent event) {
                             ^
  symbol:   class FMLServerStartingEvent
  location: class ModElement
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:158: error: cannot find symbol 
      
      public void registerModels(ModelRegistryEvent event) {
                                 ^
  symbol:   class ModelRegistryEvent
  location: class ModElement
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:161: error: cannot find symbol 
      
      public int addFuel(ItemStack fuel) {
                         ^
  symbol:   class ItemStack
  location: class ModElement
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:95: error: cannot find symbol 
      
   public static class GuiHandler implements IGuiHandler {
                                             ^
  symbol:   class IGuiHandler
  location: class Elementsidks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:97: error: cannot find symbol 
      
      public Object getServerGuiElement(int id, EntityPlayer player, World world, int x, int y, int z) {
                                                ^
  symbol:   class EntityPlayer
  location: class GuiHandler
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:97: error: cannot find symbol 
      
      public Object getServerGuiElement(int id, EntityPlayer player, World world, int x, int y, int z) {
                                                                     ^
  symbol:   class World
  location: class GuiHandler
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:102: error: cannot find symbol 
      
      public Object getClientGuiElement(int id, EntityPlayer player, World world, int x, int y, int z) {
                                                ^
  symbol:   class EntityPlayer
  location: class GuiHandler
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\Elementsidks_dreams.java:102: error: cannot find symbol 
      
      public Object getClientGuiElement(int id, EntityPlayer player, World world, int x, int y, int z) {
                                                                     ^
  symbol:   class World
  location: class GuiHandler
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:22: error: cannot find symbol 
      
@Mod(modid = idks_dreams.MODID, version = idks_dreams.VERSION, dependencies = "required-after:forge@[14.23.5.2768]")
 ^
  symbol: class Mod
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:26: error: cannot find symbol 
      
   public static final SimpleNetworkWrapper PACKET_HANDLER = NetworkRegistry.INSTANCE.newSimpleChannel("idks_dreams");
                       ^
  symbol:   class SimpleNetworkWrapper
  location: class idks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:34: error: cannot find symbol 
      
   public void preInit(FMLPreInitializationEvent event) {
                       ^
  symbol:   class FMLPreInitializationEvent
  location: class idks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:46: error: cannot find symbol 
      
   public void init(FMLInitializationEvent event) {
                    ^
  symbol:   class FMLInitializationEvent
  location: class idks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:52: error: cannot find symbol 
      
   public void postInit(FMLPostInitializationEvent event) {
                        ^
  symbol:   class FMLPostInitializationEvent
  location: class idks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:57: error: cannot find symbol 
      
   public void serverLoad(FMLServerStartingEvent event) {
                          ^
  symbol:   class FMLServerStartingEvent
  location: class idks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:63: error: package RegistryEvent does not exist 
      
   public void registerBlocks(RegistryEvent.Register<Block> event) {
                                           ^
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:63: error: cannot find symbol 
      
   public void registerBlocks(RegistryEvent.Register<Block> event) {
                                                     ^
  symbol:   class Block
  location: class idks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:68: error: package RegistryEvent does not exist 
      
   public void registerItems(RegistryEvent.Register<Item> event) {
                                          ^
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:68: error: cannot find symbol 
      
   public void registerItems(RegistryEvent.Register<Item> event) {
                                                    ^
  symbol:   class Item
  location: class idks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:73: error: package RegistryEvent does not exist 
      
   public void registerBiomes(RegistryEvent.Register<Biome> event) {
                                           ^
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:73: error: cannot find symbol 
      
   public void registerBiomes(RegistryEvent.Register<Biome> event) {
                                                     ^
  symbol:   class Biome
  location: class idks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:78: error: package RegistryEvent does not exist 
      
   public void registerEntities(RegistryEvent.Register<EntityEntry> event) {
                                             ^
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:78: error: cannot find symbol 
      
   public void registerEntities(RegistryEvent.Register<EntityEntry> event) {
                                                       ^
  symbol:   class EntityEntry
  location: class idks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:83: error: package RegistryEvent does not exist 
      
   public void registerPotions(RegistryEvent.Register<Potion> event) {
                                            ^
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:83: error: cannot find symbol 
      
   public void registerPotions(RegistryEvent.Register<Potion> event) {
                                                      ^
  symbol:   class Potion
  location: class idks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:88: error: package RegistryEvent does not exist 
      
   public void registerSounds(RegistryEvent.Register<net.minecraft.util.SoundEvent> event) {
                                           ^
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreams.java:94: error: cannot find symbol 
      
   public void registerModels(ModelRegistryEvent event) {
                              ^
  symbol:   class ModelRegistryEvent
  location: class idks_dreams
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:4: error: cannot find symbol 
      
   public static class MapVariables extends WorldSavedData {
                                            ^
  symbol:   class WorldSavedData
  location: class idks_dreamsVariables
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:16: error: cannot find symbol 
      
      public void readFromNBT(NBTTagCompound nbt) {
                              ^
  symbol:   class NBTTagCompound
  location: class MapVariables
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:20: error: cannot find symbol 
      
      public NBTTagCompound writeToNBT(NBTTagCompound nbt) {
                                       ^
  symbol:   class NBTTagCompound
  location: class MapVariables
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:20: error: cannot find symbol 
      
      public NBTTagCompound writeToNBT(NBTTagCompound nbt) {
             ^
  symbol:   class NBTTagCompound
  location: class MapVariables
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:24: error: cannot find symbol 
      
      public void syncData(World world) {
                           ^
  symbol:   class World
  location: class MapVariables
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:33: error: cannot find symbol 
      
      public static MapVariables get(World world) {
                                     ^
  symbol:   class World
  location: class MapVariables
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:43: error: cannot find symbol 
      
   public static class WorldVariables extends WorldSavedData {
                                              ^
  symbol:   class WorldSavedData
  location: class idks_dreamsVariables
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:60: error: cannot find symbol 
      
      public void readFromNBT(NBTTagCompound nbt) {
                              ^
  symbol:   class NBTTagCompound
  location: class WorldVariables
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:69: error: cannot find symbol 
      
      public NBTTagCompound writeToNBT(NBTTagCompound nbt) {
                                       ^
  symbol:   class NBTTagCompound
  location: class WorldVariables
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:69: error: cannot find symbol 
      
      public NBTTagCompound writeToNBT(NBTTagCompound nbt) {
             ^
  symbol:   class NBTTagCompound
  location: class WorldVariables
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:78: error: cannot find symbol 
      
      public void syncData(World world) {
                           ^
  symbol:   class World
  location: class WorldVariables
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:87: error: cannot find symbol 
      
      public static WorldVariables get(World world) {
                                       ^
  symbol:   class World
  location: class WorldVariables
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:97: error: cannot find symbol 
      
   public static class WorldSavedDataSyncMessageHandler implements IMessageHandler<WorldSavedDataSyncMessage, IMessage> {
                                                                   ^
  symbol:   class IMessageHandler
  location: class idks_dreamsVariables
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:123: error: cannot find symbol 
      
   public static class WorldSavedDataSyncMessage implements IMessage {
                                                            ^
  symbol:   class IMessage
  location: class idks_dreamsVariables
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:97: error: cannot find symbol 
      
   public static class WorldSavedDataSyncMessageHandler implements IMessageHandler<WorldSavedDataSyncMessage, IMessage> {
                                                                                                              ^
  symbol:   class IMessage
  location: class idks_dreamsVariables
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:99: error: cannot find symbol 
      
      public IMessage onMessage(WorldSavedDataSyncMessage message, MessageContext context) {
                                                                   ^
  symbol:   class MessageContext
  location: class WorldSavedDataSyncMessageHandler
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:99: error: cannot find symbol 
      
      public IMessage onMessage(WorldSavedDataSyncMessage message, MessageContext context) {
             ^
  symbol:   class IMessage
  location: class WorldSavedDataSyncMessageHandler
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:108: error: cannot find symbol 
      
      private void syncData(WorldSavedDataSyncMessage message, MessageContext context, World world) {
                                                               ^
  symbol:   class MessageContext
  location: class WorldSavedDataSyncMessageHandler
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:108: error: cannot find symbol 
      
      private void syncData(WorldSavedDataSyncMessage message, MessageContext context, World world) {
                                                                                       ^
  symbol:   class World
  location: class WorldSavedDataSyncMessageHandler
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:125: error: cannot find symbol 
      
      public WorldSavedData data;
             ^
  symbol:   class WorldSavedData
  location: class WorldSavedDataSyncMessage
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\idks_dreamsVariables.java:130: error: cannot find symbol 
      
      public WorldSavedDataSyncMessage(int type, WorldSavedData data) {
                                                 ^
  symbol:   class WorldSavedData
  location: class WorldSavedDataSyncMessage
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAdminrmor.java:6: error: cannot find symbol 
      
   public static final Item helmet = null;
                       ^
  symbol:   class Item
  location: class MCreatorAdminrmor
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAdminrmor.java:8: error: cannot find symbol 
      
   public static final Item body = null;
                       ^
  symbol:   class Item
  location: class MCreatorAdminrmor
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAdminrmor.java:10: error: cannot find symbol 
      
   public static final Item legs = null;
                       ^
  symbol:   class Item
  location: class MCreatorAdminrmor
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAdminrmor.java:12: error: cannot find symbol 
      
   public static final Item boots = null;
                       ^
  symbol:   class Item
  location: class MCreatorAdminrmor
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAdminrmor.java:34: error: cannot find symbol 
      
   public void registerModels(ModelRegistryEvent event) {
                              ^
  symbol:   class ModelRegistryEvent
  location: class MCreatorAdminrmor
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAdminsword.java:9: error: cannot find symbol 
      
   public static final Item block = null;
                       ^
  symbol:   class Item
  location: class MCreatorAdminsword
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAdminsword.java:50: error: cannot find symbol 
      
   public void registerModels(ModelRegistryEvent event) {
                              ^
  symbol:   class ModelRegistryEvent
  location: class MCreatorAdminsword
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAir.java:6: error: cannot find symbol 
      
   public static final Item block = null;
                       ^
  symbol:   class Item
  location: class MCreatorAir
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAir.java:19: error: cannot find symbol 
      
   public void registerModels(ModelRegistryEvent event) {
                              ^
  symbol:   class ModelRegistryEvent
  location: class MCreatorAir
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAir.java:23: error: cannot find symbol 
      
   public static class ItemCustom extends Item {
                                          ^
  symbol:   class Item
  location: class MCreatorAir
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAir.java:38: error: cannot find symbol 
      
      public int getMaxItemUseDuration(ItemStack itemstack) {
                                       ^
  symbol:   class ItemStack
  location: class ItemCustom
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAir.java:43: error: cannot find symbol 
      
      public float getDestroySpeed(ItemStack par1ItemStack, IBlockState par2Block) {
                                   ^
  symbol:   class ItemStack
  location: class ItemCustom
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAir.java:43: error: cannot find symbol 
      
      public float getDestroySpeed(ItemStack par1ItemStack, IBlockState par2Block) {
                                                            ^
  symbol:   class IBlockState
  location: class ItemCustom
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAirore.java:8: error: cannot find symbol 
      
   public static final Block block = null;
                       ^
  symbol:   class Block
  location: class MCreatorAirore
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAirore.java:22: error: cannot find symbol 
      
   public void registerModels(ModelRegistryEvent event) {
                              ^
  symbol:   class ModelRegistryEvent
  location: class MCreatorAirore
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAirore.java:27: error: cannot find symbol 
      
   public void generateWorld(Random random, int chunkX, int chunkZ, World world, int dimID, IChunkGenerator cg, IChunkProvider cp) {
                                                                    ^
  symbol:   class World
  location: class MCreatorAirore
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAirore.java:27: error: cannot find symbol 
      
   public void generateWorld(Random random, int chunkX, int chunkZ, World world, int dimID, IChunkGenerator cg, IChunkProvider cp) {
                                                                                            ^
  symbol:   class IChunkGenerator
  location: class MCreatorAirore
C:\IdkDreams\build\sources\main\java\net\mcreator\idks_dreams\MCreatorAirore.java:27: error: cannot find symbol 
      
   public void generateWorld(Random random, int chunkX, int chunkZ, World world, int dimID, IChunkGenerator cg, IChunkProvider cp) {
                                                                                                                ^
  symbol:   class IChunkProvider
  location: class MCreatorAirore
100 errors
:compileJava FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':compileJava'.
> Compilation failed; see the compiler error output for details.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 11s
7 actionable tasks: 4 executed, 3 up-to-date
C:\IdkDreams>
Task completed with return code 0 in 11416 milliseconds

Im using latest version 1.9.1. Even regenerating code dont work.