Minimal reproducible code

example.dart

import 'package:camera/camera.dart';
import 'package:flutter/material.dart';
import 'package:video_player/video_player.dart';

///
///
///
class FlutterTest extends StatefulWidget {
  ///
  ///
  ///
  const FlutterTest({Key? key}) : super(key: key);

  ///
  ///
  ///
  @override
  State<FlutterTest> createState() => _FlutterTestState();
}

///
///
///
class _FlutterTestState extends State<FlutterTest> {
  CameraController? _cameraController;
  List<CameraDescription>? _availableCameras;
  final ValueNotifier<VideoPlayerController?> videoPlayerController =
      ValueNotifier<VideoPlayerController?>(null);

  ///
  ///
  ///
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(),
      body: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: <Widget>[
          Center(
            child: ElevatedButton(
              onPressed: recordVideo,
              child: Text('Record video'),
            ),
          ),
          ValueListenableBuilder<VideoPlayerController?>(
            valueListenable: videoPlayerController,
            builder: (BuildContext context, VideoPlayerController? value,
                Widget? child) {
              if (value == null) {
                return Text('Please, record a video');
              }
              return VideoPlayer(value);
            },
          ),
        ],
      ),
    );
  }

  ///
  ///
  ///
  Future<void> recordVideo() async {
    _availableCameras ??= await availableCameras();
    _cameraController ??= CameraController(
      _availableCameras!.first,
      ResolutionPreset.max,
    );
    await _cameraController!.initialize();
    await _cameraController!.startVideoRecording();
    await Future<void>.delayed(Duration(seconds: 10));
    XFile xfile = await _cameraController!.stopVideoRecording();

    VideoPlayerController playerController =
        VideoPlayerController.network(xfile.path);

    /// This is where the crash happens
    await playerController.initialize();

    
    videoPlayerController.value = playerController;
  }
}