Dart Flutter: throw FlutterError.fromParts(<DiagnosticsNode>[ - flutter

Question

I'm making a program for calculations in flutter and when building the package, it throws me to the "debyg.dart" file and points to the line "throw FlutterError.fromParts(<DiagnosticsNode>[". So what should I do with this error. I'm still new to flutter, so I don't know much.
import 'package:flutter/material.dart';
import 'datchik/datchiki.dart';
import 'ThirdPage.dart';
import 'datchik/TCP10P.dart';
import 'datchik/TCP50P.dart';
import 'datchik/TCP100P.dart';
import 'datchik/TCP500P.dart';
import 'datchik/TCP1000P.dart';
void main() {
runApp(
MaterialApp(
debugShowCheckedModeBanner: false,
initialRoute: '/',
routes: {
'/': (context) => const MyHome(),
'/datchiki': (context) => SecondPage(),
'/ThirdPage': (context) => ThirdPage(),
'/TCP10P': (context) => const TCP10P(),
'/TCP100P': (context) => const TCP100P(),
'/TCP50P': (context) => const TCP50P(),
'/TCP500P': (context) => const TCP500P(),
'/TCP1000P': (context) => const TCP1000P(),
},
),
);
}
class MyHome extends StatelessWidget {
const MyHome({Key? key}) : super (key: key);
#override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Color.fromARGB(255, 214, 162, 248),
body: SafeArea(
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text("Главная страница",
style: TextStyle(fontSize: 20)),
TextButton.icon(
style: ButtonStyle(
backgroundColor: MaterialStatePropertyAll(Colors.black),
foregroundColor: MaterialStatePropertyAll(Colors.white)
),
onPressed: () {
Navigator.pushNamed(context, '/datchiki');
},
icon: const Icon(Icons.settings),
label: const Text('Датчики температур'),
),
ElevatedButton.icon(
style: ButtonStyle(
backgroundColor: MaterialStatePropertyAll(Colors.black),
foregroundColor: MaterialStatePropertyAll(Colors.white)
),
onPressed: () {
Navigator.pushNamed(context, '/ThirdPage');
},
icon: const Icon(Icons.settings),
label: const Text('ТСП - 50П')
),
],
)
),
)
);
}
}
TCP-10P.dart The file in which the error appears
import 'package:flutter/material.dart';
import 'datchik/datchiki.dart';
import 'ThirdPage.dart';
import 'datchik/TCP10P.dart';
import 'datchik/TCP50P.dart';
import 'datchik/TCP100P.dart';
import 'datchik/TCP500P.dart';
import 'datchik/TCP1000P.dart';
void main() {
runApp(
MaterialApp(
debugShowCheckedModeBanner: false,
initialRoute: '/',
routes: {
'/': (context) => const MyHome(),
'/datchiki': (context) => SecondPage(),
'/ThirdPage': (context) => ThirdPage(),
'/TCP10P': (context) => const TCP10P(),
'/TCP100P': (context) => const TCP100P(),
'/TCP50P': (context) => const TCP50P(),
'/TCP500P': (context) => const TCP500P(),
'/TCP1000P': (context) => const TCP1000P(),
},
),
);
}
class MyHome extends StatelessWidget {
const MyHome({Key? key}) : super (key: key);
#override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Color.fromARGB(255, 214, 162, 248),
body: SafeArea(
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text("Главная страница",
style: TextStyle(fontSize: 20)),
TextButton.icon(
style: ButtonStyle(
backgroundColor: MaterialStatePropertyAll(Colors.black),
foregroundColor: MaterialStatePropertyAll(Colors.white)
),
onPressed: () {
Navigator.pushNamed(context, '/datchiki');
},
icon: const Icon(Icons.settings),
label: const Text('Датчики температур'),
),
ElevatedButton.icon(
style: ButtonStyle(
backgroundColor: MaterialStatePropertyAll(Colors.black),
foregroundColor: MaterialStatePropertyAll(Colors.white)
),
onPressed: () {
Navigator.pushNamed(context, '/ThirdPage');
},
icon: const Icon(Icons.settings),
label: const Text('ТСП - 50П')
),
],
)
),
)
);
}
}
Debug.dart The file where it throws me
throw FlutterError.fromParts(<DiagnosticsNode>[
ErrorSummary('No Material widget found.'),
ErrorDescription(
'${context.widget.runtimeType} widgets require a Material '
'widget ancestor.\n'
'In Material Design, most widgets are conceptually "printed" on '
"a sheet of material. In Flutter's material library, that "
'material is represented by the Material widget. It is the '
'Material widget that renders ink splashes, for instance. '
'Because of this, many material library widgets require that '
'there be a Material widget in the tree above them.',
),
ErrorHint(
'To introduce a Material widget, you can either directly '
'include one, or use a widget that contains Material itself, '
'such as a Card, Dialog, Drawer, or Scaffold.',
),
...context.describeMissingAncestor(expectedAncestorType: Material),
]);
I tried changing the SizedBox parameters, but nothing worked. Maybe I just did it wrong