Error when dismissing view controller

Question

Getting an error when dismissing a view controller, not seen anything like it before, and not much about it on the internet.

heres the error: * Assertion failur

Answer 1

In the target view controller define delegate and protocol:

@class TargetVC;
@protocol TargetVCDelegate 
-(void)dismissTargetVC:(TargetVC*)vc;
@end

@interface TargetVC : UIViewController
@property (nonatomic, weak) id delegate;
@end

when you done the job at the target view controller call the delegate:
if( [self.delegate respondsToSelector:@selector(dismissTargetVC:)])
{
   [self.delegate dismissTargetVC:self];
}

The implementation of the delegate protocol should be:
-(void)dismissTargetVC:(TargetVC*)vc
{
    [vc dismissViewControllerAnimated:YES completion:nil];

    // you can get relevant data from vc as you still hold reference to it in this block

    // your code ...
}