Eu sou um iniciante em tudo programação e tenho tentado implementar algumas coisas auto aprendidas do Big Nerd Ranch Books. Mas eu estou realmente perplexo com esse problema, e sim, eu procurei neste e em outros fóruns por possíveis soluções sem sucesso. Aqui está o código:

ANKYViewController.h:

#import <UIKit/UIKit.h>

@interface ANKYViewController : UIViewController
@property (weak, nonatomic) IBOutlet UITextField *weightFieldDeadlift;
@property (weak, nonatomic) IBOutlet UITextField *repFieldDeadlift;
@property (strong, nonatomic) IBOutlet UILabel *workingOneRMDeadlift;

@property (weak, nonatomic) IBOutlet UITextField *weightFieldBenchPress;
@property (weak, nonatomic) IBOutlet UITextField *repFieldBenchPress;
@property (strong, nonatomic) IBOutlet UILabel *workingOneRMBenchPress;

@property (weak, nonatomic) IBOutlet UITextField *weightFieldSquat;
@property (weak, nonatomic) IBOutlet UITextField *repFieldSquat;
@property (strong, nonatomic) IBOutlet UILabel *workingOneRMSquat;

@property (weak, nonatomic) IBOutlet UITextField *weightFieldMilitaryPress;
@property (weak, nonatomic) IBOutlet UITextField *repFieldMilitaryPress;
@property (strong, nonatomic) IBOutlet UILabel *workingOneRMMilitaryPress;

- (IBAction)calculateOneRM:(id)sender;

@end

ANKYViewController.m:

#import "ANKYViewController.h"

@interface ANKYViewController ()

@end

@implementation ANKYViewController
@synthesize weightFieldDeadlift;
@synthesize repFieldBenchPress;
@synthesize workingOneRMBenchPress;
@synthesize weightFieldSquat;
@synthesize repFieldSquat;
@synthesize workingOneRMSquat;
@synthesize weightFieldMilitaryPress;
@synthesize repFieldMilitaryPress;
@synthesize workingOneRMMilitaryPress;
@synthesize repFieldDeadlift;
@synthesize workingOneRMDeadlift;
@synthesize weightFieldBenchPress;

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)viewDidUnload
{
    [self setWeightFieldDeadlift:nil];
    [self setRepFieldDeadlift:nil];
    [self setWorkingOneRMDeadlift:nil];
    [self setWeightFieldDeadlift:nil];
    [self setRepFieldBenchPress:nil];
    [self setWeightFieldBenchPress:nil];
    [self setWorkingOneRMBenchPress:nil];
    [self setWeightFieldSquat:nil];
    [self setRepFieldSquat:nil];
    [self setWorkingOneRMSquat:nil];
    [self setWeightFieldMilitaryPress:nil];
    [self setRepFieldMilitaryPress:nil];
    [self setWorkingOneRMMilitaryPress:nil];
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}

- (IBAction)calculateOneRM:(id)sender {
    float dw = [[weightFieldDeadlift text]floatValue];
    float dr = [[repFieldDeadlift text]floatValue];
    float d = (dw * dr * 0.0333) + dw;
    NSLog(@"Deadlift: %f", d);
    NSString *deadlift = [[NSString alloc]initWithFormat:@"%f", d];
    [workingOneRMDeadlift setText:deadlift];

    float bpw = [[weightFieldBenchPress text]floatValue];
    float bpr = [[repFieldBenchPress text]floatValue];
    float bp = (bpw * bpr * 0.0333) + bpw;
    NSLog(@"Bench Press: %f", bp);
    NSString *benchPress = [[NSString alloc]initWithFormat:@"%f", bp];
    [workingOneRMBenchPress setText:benchPress];

    float sw = [[weightFieldSquat text]floatValue];
    float sr = [[repFieldSquat text]floatValue];
    float s = (sw * sr * 0.0333) + sw;
    NSLog(@"Squat: %f", s);
    NSString *squat = [[NSString alloc]initWithFormat:@"%f", s];
    [workingOneRMSquat setText:squat];

    float mpw = [[weightFieldMilitaryPress text]floatValue];
    float mpr = [[repFieldMilitaryPress text]floatValue];
    float mp = (mpw * mpr * 0.0333) + mpw;
    NSLog(@"Military Press: %f", mp);
    NSString *militaryPress = [[NSString alloc]initWithFormat:@"%f", mp];
    [workingOneRMMilitaryPress setText:militaryPress];
}
@end

A classe proprietária do arquivo já é declarada como ANKYViewController. Ligando as saídas etc foi por controle arrastando em vez de codificação manual (desisti depois de passar muitas horas).

O erro:

*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UIApplication 0x6c22e70> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key repsField.'

Não há cópia e colagem de código, e é certamente angustiante que não há menção de "repsField" (em vez de repFieldxxx) em qualquer lugar.

Espero que isso seja informação suficiente para ajudar a levar a uma solução, pois passei dias examinando as soluções de outras pessoas sem sucesso.

Obrigado.