Error code 38 - "id parameter is missing."


I am using following code in my iOS app, to favourite a tweet by particular tweet id.

+ (void)favTweetForUser:(NSString *)tweet_id withAccount:(ACAccount*)twitterAccounts andCompletion:(resultCompletion)completion
    NSURL *url = [NSURL URLWithString:@""];
    NSNumber * myNumber =[NSNumber numberWithLongLong:[tweet_id longLongValue]];
    NSDictionary *params = @{@"id" : myNumber};

    [self postRequestWithAcc:twitterAccounts param:params url:url andCompletion:completion];

I am getting following response from twitter

errors = (
code = 38;
message = “id parameter is missing.”;

I am not understanding this error, I am passing “id” parameter, but still getting that error, please suggest me changes to work it