Multiple methods named 'bounds' found with mismatched result

[Liu yan]

Test in Xcode 7.3.1 and FXBlurView version is 1.6.3 and 1.6.4
The issue is the error:
Multiple methods named 'bounds' found with mismatched result, parameter type or attributes
in the code

• (BOOL)shouldUpdate
  {
  __strong CALayer *underlyingLayer = [self underlyingLayer];

  return
  underlyingLayer && !underlyingLayer.hidden &&
  self.blurEnabled && [FXBlurScheduler sharedInstance].blurEnabled &&
  !CGRectIsEmpty([self.layer.presentationLayer ?: self.layer bounds]) && !CGRectIsEmpty(underlyingLayer.bounds);
  }
  Anyone has similar issue and how to solve it?