“Like” a Page using the Facebook Graph API, Objective C

I'm trying to allow the user of my iOS app to "Like" a page using the following code:

NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:@"access_token",[[NSUserDefaults standardUserDefaults] objectForKey:@"fb_accessToken"], nil];

[facebook requestWithGraphPath:@"PAGE_ID/likes" andParams:params andHttpMethod:@"POST" andDelegate:self];

I get the error message:

Error Domain=facebookErrDomain Code=10000 "The operation couldn’t be completed. (facebookErrDomain error 10000.)" UserInfo=0x624d560 {error=<CFBasicHash 0x6243fb0 [0x171e400]>{type = mutable dict, count = 2,
        entries =>
            2 : <CFString 0x624cec0 [0x171e400]>{contents = "type"} = <CFString 0x624bc40 [0x171e400]>{contents = "OAuthException"}
            3 : <CFString 0x624aaf0 [0x171e400]>{contents = "message"} = <CFString 0x6248b50 [0x171e400]>{contents = "(#3) Application does not have the capability to make this API call."}
        }
        }

This should be part of the Graph API because it says you can use that to "Like" any object with a /Likes connections. Any help?