Well, I have a problem that I cannot solve, when I go to a preview of what I did in "XAML", I always come across this error.
Teamdetailspage is a class you created?
– Jéf Bueno
@LINQ yes this is my page
– Maria Canelas
Have you tried creating a constructor with no parameters in it?
– Jéf Bueno
No , but I don’t think it interferes with anything
– Maria Canelas