I'm trying to test for a written book in a chest but I keep getting the error message: Block at -1489,64,-1510 did not have the required NBT keys. I know there is a glitch were you have to fill in every NBT tag but please don't say it is the glitch because I filled in every tag. My command is below and I'm playing in 1.8.8, please help me!
/testforblock -1489 64 -1510 minecraft:chest -1 {Items:[{id:"minecraft:written_book",Slot:0b,Damage:0s,Count:1b}]}