Objective-c error: [UIView copyWithZone:]: unrecognized selector sent to the instance

I have some extreme difficulties with this use of blocks and inheritance.

I declared a block in the .h file:

void (^block)(BOOL);

initialize it to .m:

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        block = ^(BOOL noshow)
        {
            if(noshow){
                AutoTracView.hidden = YES;
                MarineTracView.hidden = YES;

            }
        };
    }
    return self;
}

Now I pass it, as well as instances of UIVIEw to the UIViewController category:

NSDictionary *const collection = [NSDictionary dictionaryWithObjectsAndKeys: //make global
                                  @"1", AutoTracView,
                                  @"2", MarineTracView,
                                  nil];

[self renderView:[current_unit.unit_type intValue] onCollection:(NSDictionary *)collection withBlock:block];

In UIViewController + extensions.m:

-(void)renderView:(int)value onCollection:(NSDictionary *)collection withBlock:block
{
    block(TRUE);
    NSString *index = [NSString stringWithFormat:@"%d", value];
    UIView *view = [collection objectForKey:index];
    view.hidden = NO;    
}

Unfortunately, the (TRUE) block throws a compilation error: "The object type identifier is not a function or function pointer"

ok, so I get desparate and just trying to get the block to work, so I delete the block as a parameter call. and just name it in the controller that works. But then another problem arises:

NSDictionary *const collection = [NSDictionary dictionaryWithObjectsAndKeys: //make global
                                  @"1", AutoTracView,
                                  @"2", MarineTracView,
                                  nil];

This does not match the above:

-[UIView copyWithZone:]: unrecognized selector sent to instance 0x6ee2b80
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIView copyWithZone:]: unrecognized selector sent to instance 0x6ee2b80'

Am I not allowed to transfer my instances of UIView?

Here is the header file for this:

@property (weak, nonatomic) IBOutlet UIView *AutoTracView;

@property (weak, nonatomic) IBOutlet UIView *MarineTracView;

, -. , "[UIView copyWithZone:]: , "