The argument type 'x' can't be assigned to the parameter type 'y'

There is a problem with this line

Text(snapshot.data.isPause);

I don't know how to fix it.

-----------------------------------------CODE-------------------------------------------

MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
          body: Center(
        child: FutureBuilder<Post>(
            future: fetchPost(),
            builder: (context, snapshot) {
              if (snapshot.hasData)
                return Text(snapshot.data.isPause);
              else if (snapshot.hasError) {
                return Text("${snapshot.error}");
              }
              return CircularProgressIndicator();
            }),
      )),
    )

The argument type x can't be assigned to the parameter type y

Your isPause isn't returning String, it needs to return String because Text() accepts String, for quick hack, you can try below solution.

Text(snapshot.data.isPause.toString());