Incomplete implementations - objective-c

Question

I'm working on a project in Xcode and getting an error from didReceiveMemoryWarning and incomplete implementation. This is the main file:
#import <UIKit/UIKit.h>
#import <Parse/Parse.h>
#interface LoginViewController : UIViewController
#property (strong, nonatomic) IBOutlet UIScrollView *scroller;
#property (weak, nonatomic) IBOutlet UITextField *FirstNameField;
#property (weak, nonatomic) IBOutlet UITextField *SurnameField;
#property (weak, nonatomic) IBOutlet UITextField *EmailField;
#property (weak, nonatomic) IBOutlet UITextField *PasswordField;
#property (weak, nonatomic) IBOutlet UITextField *ReenterPasswordField;
- (IBAction)RegisterAction:(id)sender;
#end
This is .m file:
#import "LoginViewController.h"
#interface LoginViewController ()
#end
#implementation LoginViewController
#synthesize scroller;
- (void)viewDidLoad
{
[super viewDidLoad];
[scroller setScrollEnabled:YES];
[scroller setContentSize:CGSizeMake(340, 600)];
}
- (void)viewDidAppear:(BOOL)animated
{
PFUser *user = [PFUser currentUser];
if (user.email != nil) {
[self performSegueWithIdentifier:#"login" sender:self];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)RegisterAction:(id)sender {
[_FirstNameField resignFirstResponder];
[_SurnameField resignFirstResponder];
[_EmailField resignFirstResponder];
[_PasswordField resignFirstResponder];
[_ReenterPasswordField resignFirstResponder];
[self checkFieldsComplete];
[self checkFieldsComplete];
}
- (void) checkFieldsComplete {
if ([_FirstNameField.text isEqualToString:#""] || [_SurnameField.text isEqualToString:#""]|| [_EmailField.text isEqualToString:#""] || [_PasswordField.text isEqualToString:#""] || [_ReenterPasswordField.text isEqualToString:#""]) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Oops" message: #"Make sure to complete every field" delegate: nil cancelButtonTitle: #"Ok" otherButtonTitles: nil];
[alert show];
} else {
[self checkPasswordsMatch];
}
}
- (void) checkPasswordsMatch {
if (![_PasswordField.text isEqualToString:_ReenterPasswordField.text]) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Oops" message: #"Passwords don't match" delegate: nil cancelButtonTitle: #"Ok" otherButtonTitles: nil];
[alert show];
}
}
- (void) registerNewUser {
PFUser *newUser;
newUser.username = [NSString stringWithFormat: _FirstNameField.text, _SurnameField.text];
newUser.email = _EmailField.text;
newUser.password = _PasswordField.text;
[newUser signUpInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
if (!error) {
NSLog(#"Welcome to Vici!");
[self performSegueWithIdentifier:#"login"
sender:self];
} else {
NSLog(#"There was an error in registration");
}
}];
}
#end
Can anyone point out a solution?

Answer 1

You are missing a closing brace at viewDidAppear, and thus it's getting confused by the rest of the #implementation and complaining because it's not finding RegisterAction as a result. It's showing you the warning at didReceiveMemoryWarning because that was the first bit of code after your missing brace (which shows you how to find the issue in the future).
Add the missing brace and you should get past this error.