I want to make my mod 100% client side free so I started to play with FML and before i was even started i ran into a problem:

 

When I run the Install.cmd this happens:

 

 

> Recompiling
'"C:\Program Files\Java\jdk1.7.0_04\bin\javac" -Xlint:-options -deprecation -g -
source 1.6 -target 1....' failed : 1

== ERRORS FOUND ==

src\minecraft_server\minecraft_server\cpw\mods\fml\server\FMLServerHandler.java:
547: error: cannot find symbol
        WorldType.DEFAULT.addNewBiome(biome);
                         ^

  symbol:   method addNewBiome(BiomeGenBase)
  location: variable DEFAULT of type WorldType
src\minecraft_server\minecraft_server\net\minecraft\src\ModLoader.java:352: erro
r: cannot find symbol
        return Entity.getNextId();
                     ^

  symbol:   method getNextId()
  location: class Entity
src\minecraft_server\minecraft_server\net\minecraft\src\ServerRegistry.java:52:
error: cannot find symbol
        EntityList.addNewEntityListMapping(entityClass, entityName, id);
                  ^

  symbol:   method addNewEntityListMapping(Class<CAP#1>,String,int)
  location: class EntityList
  where CAP#1 is a fresh type-variable:
    CAP#1 extends Entity from capture of ? extends Entity
src\minecraft_server\minecraft_server\net\minecraft\src\ServerRegistry.java:58:
error: cannot find symbol
        EntityList.addNewEntityListMapping(entityClass, entityName, id, backgrou
ndEggColour, foregroundEggColour);
                  ^

  symbol:   method addNewEntityListMapping(Class<CAP#1>,String,int,int,int)
  location: class EntityList
  where CAP#1 is a fresh type-variable:
    CAP#1 extends Entity from capture of ? extends Entity
src\minecraft_server\minecraft_server\net\minecraft\src\ServerRegistry.java:64:
error: cannot find symbol
        TileEntity.addNewTileEntityMapping(tileEntityClass, id);
                  ^

  symbol:   method addNewTileEntityMapping(Class<CAP#1>,String)
  location: class TileEntity
  where CAP#1 is a fresh type-variable:
    CAP#1 extends TileEntity from capture of ? extends TileEntity
src\minecraft_server\minecraft_server\net\minecraft\src\ServerRegistry.java:101:
error: cannot find symbol
        Class <? extends Entity > entityClazz = EntityList.getEntityToClassMappi
ng().get(entityName);
                                                          ^

  symbol:   method getEntityToClassMapping()
  location: class EntityList
src\minecraft_server\minecraft_server\net\minecraft\src\ServerRegistry.java:137:
error: cannot find symbol
        Class <? extends Entity > entityClazz = EntityList.getEntityToClassMappi
ng().get(entityName);
                                                          ^

  symbol:   method getEntityToClassMapping()
  location: class EntityList
7 errors
==================

Server recompile failed, correct source then rerun updatemd5
Druk op een toets om door te gaan. . .

 

 

Any help?

Don't decompile FML, use completely fresh jars, touch nothing.