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任务“：app：compileDebugJavaWithJavac”编译失败。

javafirebaseflutter
3

首先，我将全局minSdkVersion变量的值从源代码中修改为19，以便所有项目（旧的和新的）都使用它。

其次，我添加了flutter firebase插件，并成功运行了flutter。

最后，当我查看seedebug控制台时，在vscode中出现了错误。我不知道如何解决它。

D:\flutter_application_3_vs\android\app\src\main\java\io\flutter\app\FlutterMultiDexApplication.java:12: ����: �����androidx.multidex������
import androidx.multidex.MultiDex;
                        ^
D:\flutter_application_3_vs\android\app\src\main\java\io\flutter\app\FlutterMultiDexApplication.java:22: ����: �Ҳ�������
    MultiDex.install(this);
    ^
  ����:   ���� MultiDex
  �: �� FlutterMultiDexApplication
2 ������

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

* 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 7s
Exception: Gradle task assembleDebug failed with exit code 1
Exited (sigterm)

这是Flutter中的命令，用于检查Flutter和相关依赖项的版本及其是否正确安装。它还会在默认情况下编译您的Flutter应用程序，并使用Javac编译器对Java代码进行编译。
[√] Flutter (Channel stable, 3.0.0, on Microsoft Windows [版本 10.0.19044.1645], locale zh-Hans-HK)
    • Flutter version 3.0.0 at D:\flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision ee4e09cce0 (2 days ago), 2022-05-09 16:45:18 -0700
    • Engine revision d1b9a6938a
    • Dart version 2.17.0
    • DevTools version 2.12.2
    • Pub download mirror https://pub.flutter-io.cn
    • Flutter download mirror https://storage.flutter-io.cn

[√] Android toolchain - develop for Android devices (Android SDK version 32.0.0)
    • Android SDK at D:\SDK
    • Platform android-32, build-tools 32.0.0
    • ANDROID_HOME = D:\SDK
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 11.0.12+7-b1504.28-7817840)
    • All Android licenses accepted.

[X] Chrome - develop for the web (Cannot find Chrome executable at .\Google\Chrome\Application\chrome.exe)
    ! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.

[X] Visual Studio - develop for Windows
    X Visual Studio not installed; this is necessary for Windows development.
      Download at https://visualstudio.microsoft.com/downloads/.
      Please install the "Desktop development with C++" workload, including all of its default components

[√] Android Studio (version 2021.2)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin can be installed from:
       https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
       https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 11.0.12+7-b1504.28-7817840)

[√] Connected device (3 available)
    • Android SDK built for x86 64 (mobile) • emulator-5554 • android-x64    • Android 12 (API 31) (emulator)
    • Windows (desktop)                     • windows       • windows-x64    • Microsoft Windows [版本 10.0.19044.1645]
    • Edge (web)                            • edge          • web-javascript • Microsoft Edge 101.0.1210.39

[√] HTTP Host Availability
    • All required HTTP hosts are available

我的app/build.gradle

android {
    compileSdkVersion flutter.compileSdkVersion

  defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "com.example.flutter_application_3_vs"
        minSdkVersion flutter.minSdkVersion
        targetSdkVersion flutter.targetSdkVersion
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
    }

我在 app/build.gradle 文件中添加了这个内容，但是没有生效。
 buildToolVersion "23.0.1"

在使用 vscode 设置此项目之前，已经设置了 java_home。

环境变量 java_home。

JAVA_HOME17:
D:\JDK\java\jdk-17.0.1
请问你能在这里分享一下这个代码文件吗？ - keyur
@keyur，我添加了一些代码。 - Programming newcomers
请问您能否直接在问题中分享代码和图片？ - Julien Gavard
@Julien Gavard 是的，我可以。 - Programming newcomers
2个回答
4

你是否在 app/build.gradle 中进行了类似以下方式的 multidex 初始化？

defaultConfig {
  //add this line
    multiDexEnabled true
}
dependencies {
//add these lines
def multidex_version = "2.0.1"
implementation "androidx.multidex:multidex:$multidex_version"
}

2.检查以下内容或添加到android/gradle.properties文件中

org.gradle.jvmargs=-Xmx1536M
android.enableR8=true
android.useAndroidX=true
android.enableJetifier=true
0

将 build.gradle 文件中的 buildToolsVersion 升级为 "23.0.1"，具体操作如下：

compileSdkVersion 23
buildToolsVersion "23.0.1".
我按照你说的做了，但是没有起作用，感谢你的帮助。 - Programming newcomers
你可以尝试在操作系统环境中添加JAVA_HOME。例如： export JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home" - Tamzid Ahmed
在使用VSCode设置项目之前，已经设置了Java_home。 - Programming newcomers
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