Saphirian

A lot of this is because of the recent changes regarding textures. (Which I am definitely not a fan of. I hate having hundreds of files for what could've fit in two.) "The method setItemName(String)/setBlockName(String) is undefinded for the type Item/Block": Whereever you are using setItemName(String) or setBlockName(String), replace that with setUnlocalizedName(String). This should fix it. Same goes for getItem/BlockName(String), just use getUnlocalizedName(String). "The constructor Block(int, int, Material) is undefined": In your BlockWhatever classes, your constructors are probably looking like this right now: public BlockWhatever(int par1, int par2, Material par3Material) { super(par1, par2, par3Material); } You need to change it to look like this: public BlockWhatever(int par1, Material par2Material) { super(par1, par2Material); } Of course you will have to get rid of the second parameter when declaring your blocks as well then. With the other stuff, I can't help you since I haven't figured that new texture stuff my self yet.