/testfor finding item in item frame help?

Here's the code that sees if there's a book called Keys in the item frame.

/testfor @e[type=ItemFrame,r=10] {Item:{id:minecraft:writable_book,tag:{display:{Name:"Keys"}}}}

When I put this in I get the error:

[18:09:28] entity.ItemFrame.name did not match the required data structure

Can someone help fix my command?

Solution 1:

You used the wrong entity name. A hanging itemframe is not called ItemFrame but item_frame.

So, the following command would work:

/testfor @e[type=item_frame,r=10] {Item:{id:minecraft:writable_book,tag:{display:{Name:"Keys"}}}}

Please note: this command checks the name given to an item. You are essentially looking for a writable book that has been renamed using an anvil. If your goal is however to check for a closed book with a title you should use the following command:

/testfor @e[type=item_frame,r=10] {Item:{id:minecraft:written_book,tag:[{title:Keys}][2]}}