Another exception was thrown: type (BuildContext, int) => dynamic is not a subtype of type (BuildContext, int) => Widget

I would like to know why I am receiving this exception and how I can fix it ? Code snippet would be helpful

I'm working on Flutter (Channel beta, v0.6.0, on Linux, locale en_US.UTF-8)

Flutter doctor shows no issues found

Solution 1: Keshav Aditya R.P

Due to flutter updates, functions rendering widgets need to have the return type explicitly stated

Example :

If the function was previously defined as

buildPhotos(BuildContext context, int index) {
...
}

Change this to

Widget buildPhotos(BuildContext context, int index) {
...
}