HORSE CHEST

me game crashed when i try to place a Wheat at an horse chest, i was on a flat world ( redstone ready preset ), i gave it speed but saddle and tame i made when summoning. i used Entity Data to add the chest.

PS: i used the commands :
/summon EntityHorse ~ ~ ~

{Tame:1,Saddle:1}

[ RIDING / can be wrong, scheck ] /entitydata @e[r=2,type=EntityHorse]

{HorseChest:1}

[RIDING] /effect @e[r=2] 1 1000000 3 true