我在构建我的应用程序时遇到问题，它一直给我这个Invalid depfile: C:\Users\kg3bo\AndroidStudioProjects\pomastore\.dart_tool\flutter_build\f3e5966fddb8025853f2e4961407d23d\kernel_snapshot.d我尝试使用的错误flutter pub get，flutter pub upgrade并删除 kernel_snapshot.d 然后用于flutter pub get重新生成它，但它没有工作。这是我的完整代码：
pubspec.yaml：
name: pomastore
description: A new Flutter project.
# The following line prevents the package from being accidentally published to
# pub.dev using `pub publish`. This is preferred for private packages.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev
# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used as versionName while build-number used as versionCode.
# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
# In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
# Read more about iOS versioning at
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
version: 1.0.0+1
environment:
sdk: ">=2.12.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
webview_flutter: ^1.0.7
font_awesome_flutter: ^8.11.0
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^1.0.2
dev_dependencies:
flutter_test:
sdk: flutter
flutter_launcher_icons: ^0.9.0
flutter_icons:
image_path: "asset/images/1.png"
android: true
ios: true
# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec
# The following section is specific to Flutter.
flutter:
# The following line ensures that the Material Icons font is
# included with your application, so that you can use the icons in
# the material Icons class.
uses-material-design: true
assets:
- asset/images/1.png
# To add assets to your application, add an assets section, like this:
# assets:
# - images/a_dot_burr.jpeg
# - images/a_dot_ham.jpeg
# An image asset can refer to one or more resolution-specific "variants", see
# https://flutter.dev/assets-and-images/#resolution-aware.
# For details regarding adding assets from package dependencies, see
# https://flutter.dev/assets-and-images/#from-packages
# To add custom fonts to your application, add a fonts section here,
# in this "flutter" section. Each entry in this list should have a
# "family" key with the font family name, and a "fonts" key with a
# list giving the asset and other descriptors for the font. For
# example:
# fonts:
# - family: Schyler
# fonts:
# - asset: fonts/Schyler-Regular.ttf
# - asset: fonts/Schyler-Italic.ttf
# style: italic
# - family: Trajan Pro
# fonts:
# - asset: fonts/TrajanPro.ttf
# - asset: fonts/TrajanPro_Bold.ttf
# weight: 700
#
# For details regarding fonts from package dependencies,
# see https://flutter.dev/custom-fonts/#from-packages
主要飞镖：
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:webview_flutter/webview_flutter.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
home: SplashScreen(),
);
}
}
class SplashScreen extends StatefulWidget {
@override
_SplashScreenState createState() => _SplashScreenState();
}
class _SplashScreenState extends State<SplashScreen> {
@override
void initState() {
// TODO: implement initState
super.initState();
Timer(Duration(seconds: 3), () {
Navigator.of(context)
.pushReplacement(MaterialPageRoute(builder: (_) => HomePage()));
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.teal[700],
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
// logo here
Image.asset(
'asset/images/1.png',
height: 120,
),
SizedBox(
height: 20,
),
CircularProgressIndicator(
valueColor: AlwaysStoppedAnimation<Color>(Colors.white),
)
],
),
),
);
}
}
class HomePage extends StatefulWidget {
@override
_HomePageState createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
@override
Widget build(BuildContext context) {
return Scaffold(
body: SafeArea(
child: WebView(
initialUrl: "https://poma.app",
javascriptMode: JavascriptMode.unrestricted,
),
),
);
}
}
构建后的输出：
C:\flutter\bin\flutter.bat --no-color build appbundle
Building with sound null safety
Running Gradle task 'bundleRelease'...
Invalid depfile: C:\Users\kg3bo\AndroidStudioProjects\pomastore\.dart_tool\flutter_build\f3e5966fddb8025853f2e4961407d23d\kernel_snapshot.d
Invalid depfile: C:\Users\kg3bo\AndroidStudioProjects\pomastore\.dart_tool\flutter_build\f3e5966fddb8025853f2e4961407d23d\kernel_snapshot.d
Invalid depfile: C:\Users\kg3bo\AndroidStudioProjects\pomastore\.dart_tool\flutter_build\f3e5966fddb8025853f2e4961407d23d\kernel_snapshot.d
Invalid depfile: C:\Users\kg3bo\AndroidStudioProjects\pomastore\.dart_tool\flutter_build\f3e5966fddb8025853f2e4961407d23d\kernel_snapshot.d
Invalid depfile: C:\Users\kg3bo\AndroidStudioProjects\pomastore\.dart_tool\flutter_build\f3e5966fddb8025853f2e4961407d23d\kernel_snapshot.d
Invalid depfile: C:\Users\kg3bo\AndroidStudioProjects\pomastore\.dart_tool\flutter_build\f3e5966fddb8025853f2e4961407d23d\kernel_snapshot.d
Invalid depfile: C:\Users\kg3bo\AndroidStudioProjects\pomastore\.dart_tool\flutter_build\f3e5966fddb8025853f2e4961407d23d\kernel_snapshot.d
Invalid depfile: C:\Users\kg3bo\AndroidStudioProjects\pomastore\.dart_tool\flutter_build\f3e5966fddb8025853f2e4961407d23d\kernel_snapshot.d
Invalid depfile: C:\Users\kg3bo\AndroidStudioProjects\pomastore\.dart_tool\flutter_build\f3e5966fddb8025853f2e4961407d23d\kernel_snapshot.d
Invalid depfile: C:\Users\kg3bo\AndroidStudioProjects\pomastore\.dart_tool\flutter_build\f3e5966fddb8025853f2e4961407d23d\kernel_snapshot.d
Invalid depfile: C:\Users\kg3bo\AndroidStudioProjects\pomastore\.dart_tool\flutter_build\f3e5966fddb8025853f2e4961407d23d\kernel_snapshot.d
Invalid depfile: C:\Users\kg3bo\AndroidStudioProjects\pomastore\.dart_tool\flutter_build\f3e5966fddb8025853f2e4961407d23d\kernel_snapshot.d
Error: Cannot run with sound null safety, because the following dependencies
don't support null safety:
- package:webview_flutter
For solutions, see https://dart.dev/go/unsound-null-safety
FAILURE: Build failed with an exception.
* Where:
Script 'C:\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1035
* What went wrong:
Execution failed for task ':app:compileFlutterBuildRelease'.
> Process 'command 'C:\flutter\bin\flutter.bat'' finished with non-zero exit value 1
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 9s
Running Gradle task 'bundleRelease'... 10.1s
Gradle task bundleRelease failed with exit code 1
Process finished with exit code 1