Facebook Unity SDK AppRequest Problem

Hello I followed this link App Request and is using the following code to make App Request to ask my friends for lives:

        "Will you Send me a Free Life?",

where objectId is the id I got when I created a new object from the Object Browser at Facebook Developers.

When I run it on iOS. I receive the following Error:


Can anyone guide me how to fix it? Thank you

You should create a new Object Type from Open Graph page into App page. After this you can create a new object under the this new type.

And it will should work.

Where is Open Graph Page in developer account?