找不到方向性小部件。 RichText小部件需要Directionality小部件祖先

Question

I am trying to run the simplest possible flutter app by printing Hello World in the screen.

Following this issue , I tried both of the snippets :

void main() {
    runApp(
        new Center(
            child: new Text("Hello World!", textDirection: TextDirection.ltr)
        )
     );
}

&&

void main() {
    runApp(new Center(
      child: new Directionality(
          textDirection: TextDirection.ltr,
          child: new Text('Hello, world!'))));
}

But I get error which says :

No Directionality widget found. RichText widgets require a Directionality widget ancestor.

What am I missing?

Answer 1

It worked for me after :

Full Restart