iPhone Facebook SDK Error - iphone

Question

I'm trying to figure out what this error means...
I'm trying to get user information via Facebook sdk. All I need is their email and name
Error Domain=facebookErrDomain Code=10000 "The operation couldn’t be completed. (facebookErrDomain error 10000.)" UserInfo=0xde94ad0 {error=<CFBasicHash 0xde7d100 [0x3f616650]>{type = mutable dict, count = 3,
entries =>
2 : <CFString 0xde722a0 [0x3f616650]>{contents = "type"} = <CFString 0xdeba1a0 [0x3f616650]>{contents = "OAuthException"}
3 : <CFString 0xde6ba20 [0x3f616650]>{contents = "message"} = <CFString 0xdeb12a0 [0x3f616650]>{contents = "An active access token must be used to query information about the current user."}
6 : <CFString 0xde74c40 [0x3f616650]>{contents = "code"} = 2500
}
}
My basic code... (below in my viewDidLoad)
facebook = [[Facebook alloc] initWithAppId:#"random#123456" andDelegate:self];
[self login];
(below in my login method)
- (void) login {
NSArray *permissionsArray = [NSArray arrayWithObjects:#"email", nil];
[facebook authorize:permissionsArray];
}
(and my Facebook request methods...)
- (void)request:(FBRequest *)request didLoad:(id)result {
NSLog(#"Inside didLoad");
if ([result isKindOfClass:[NSArray class]]) {
result = [result objectAtIndex:0];
}
// When we ask for user infor this will happen.
if ([result isKindOfClass:[NSDictionary class]]){
//NSDictionary *hash = result;
NSLog(#"Name: %#", [result objectForKey:#"name"]);
}
if ([result isKindOfClass:[NSData class]])
{
NSLog(#"Profile Picture");
//[profilePicture release];
//profilePicture = [[UIImage alloc] initWithData: result];
}
NSLog(#"request returns %#",result);
//if ([result objectForKey:#"owner"]) {}
};
- (void)request:(FBRequest *)request didFailWithError:(NSError *)error{
NSLog(#"%#",error);
}
I'm really confused to why I get an error and what I need to change or add in order to fix it...
Any ideas?
EDIT: My request code:::
- (IBAction)requestFBFriends:(id)sender {
NSLog(#"HERE");
[facebook requestWithGraphPath:#"me/friends" andDelegate:self];
}

Answer 1

Here's how you can get the name and email...
I didn't test it so if it doesn't work just tell and I'll find out the problem.
The method that sends the request needs to authenticate if you don't have a valid access token
-(void)getUserFBInfo
{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:#"FBAccessTokenKey"] && [defaults objectForKey:#"FBExpirationDateKey"]) {
self.facebook.accessToken = [defaults objectForKey:#"FBAccessTokenKey"];
self.facebook.expirationDate = [defaults objectForKey:#"FBExpirationDateKey"];
}
if (![self.facebook isSessionValid]) {
NSLog(#"auth");
[self.facebook authorize:[NSArray arrayWithObject:#"email"]];
} else {
[self apiFQLIMe];
}
}
#pragma mark -
#pragma mark FBSessionDelegate
/**
* Called when the user successfully logged in.
*/
- (void)fbDidLogin
{
[self reportAction:#"FB allowed"];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:[self.facebook accessToken] forKey:#"FBAccessTokenKey"];
[defaults setObject:[self.facebook expirationDate] forKey:#"FBExpirationDateKey"];
[defaults synchronize];
[self apiFQLIMe];
}
/**
* Called when the user dismissed the dialog without logging in.
*/
- (void)fbDidNotLogin:(BOOL)cancelled
{
NSLog("did not login");
}
/**
* Called after the access token was extended. If your application has any
* references to the previous access token (for example, if your application
* stores the previous access token in persistent storage), your application
* should overwrite the old access token with the new one in this method.
* See extendAccessToken for more details.
*/
- (void)fbDidExtendToken:(NSString*)accessToken
expiresAt:(NSDate*)expiresAt
{
NSLog(#"token extended");
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:accessToken forKey:#"FBAccessTokenKey"];
[defaults setObject:expiresAt forKey:#"FBExpirationDateKey"];
[defaults synchronize];
}
/**
* Called when the user logged out.
*/
- (void)fbDidLogout
{
NSLog("did logout")
}
/**
* Called when the current session has expired. This might happen when:
* - the access token expired
* - the app has been disabled
* - the user revoked the app's permissions
* - the user changed his or her password
*/
- (void)fbSessionInvalidated
{
[self.facebook authorize:[NSArray arrayWithObject:#"email"]];
}
#pragma mark -
#pragma mark FBRequestDelegate
- (void)apiFQLIMe {
NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
#"SELECT name, first_name, middle_name, last_name, username, contact_email FROM user WHERE uid=me()", #"query",
nil];
[self.facebook requestWithMethodName:#"fql.query"
andParams:params
andHttpMethod:#"POST"
andDelegate:self];
}
/**
* Called when the Facebook API request has returned a response.
*
* This callback gives you access to the raw response. It's called before
* (void)request:(FBRequest *)request didLoad:(id)result,
* which is passed the parsed response object.
*/
- (void)request:(FBRequest *)request didReceiveResponse:(NSURLResponse *)response
{
DLog(#"received response");
}
/**
* Called when a request returns and its response has been parsed into
* an object.
*
* The resulting object may be a dictionary, an array or a string, depending
* on the format of the API response. If you need access to the raw response,
* use:
*
* (void)request:(FBRequest *)request
* didReceiveResponse:(NSURLResponse *)response
*/
- (void)request:(FBRequest *)request didLoad:(id)result
{
NSLog(#"%#",result);
// check the log to know how you receive the result
}
/**
* Called when an error prevents the Facebook API request from completing
* successfully.
*/
- (void)request:(FBRequest *)request didFailWithError:(NSError *)error
{
NSLog(#"Err message: %#", [[error userInfo] objectForKey:#"error_msg"]);
NSLog(#"Err code: %d", [error code]);
}
If you have questions ask them in the comments

Answer 2

If you are running the application on Simulator/device Try cleaning the build and fresh install the application. The current error might be due to inactive/revoked access token which is no longer valid to access user data.
Hope it helps!!!