I had the same problem as this on Xcode
The document Main.storyboard requires Xcode 8.0 or later
Despite that I have never tried to update my Xcode or tried to open any project in an other version of Xcode. I am currently using the beta 7.2
I had done this solution:
As I couldn't open the interface builder. So now I can finally open my storyboard but I have 144 mistakes in my project that I didn't have yesterday.
I updated my question with some of the mistakes I have now on my code. These are the big problem as I don't know how to fix it because it was ok the day before.
So I have for my picker view the following code:
class ABViewController: UIViewController, UIPickerViewDataSource, UIPickerViewDelegate {
And the error says: Type "ABViewController" does not conform to protocol 'UIPickerViewDataSource'
Any solutions?
Thx