提供的 javaHome 似乎无效。我找不到 java 可执行文件。尝试位置：C:\Program Files\Java\jdk-17\bin\java.exe

Question

我已经为此烦恼了 3 天了，

每次我运行命令react-native run-android 时都会收到此错误：

info Running jetifier to migrate libraries to AndroidX. You can disable it using "--no-jetifier" flag.
(node:10284) Warning: Accessing non-existent property 'padLevels' of module exports inside circular dependency
(Use `node --trace-warnings ...` to show where the warning was created)
Jetifier found 871 file(s) to forward-jetify. Using 16 workers...
info JS server already running.
info Installing the app...

FAILURE: Build failed with an exception.

* What went wrong:
The supplied javaHome seems to be invalid. I cannot find the java executable. Tried location: C:\Program Files\Java\jdk-17\bin\java.exe

* 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

error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup.
Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081

FAILURE: Build failed with an exception.

* What went wrong:
The supplied javaHome seems to be invalid. I cannot find the java executable. Tried location: C:\Program Files\Java\jdk-17\bin\java.exe

* 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

    at makeError (C:\Users\username\Desktop\code\React Native\Build App\Scheduler\node_modules\execa\index.js:174:9)
    at C:\Users\username\Desktop\code\React Native\Build App\Scheduler\node_modules\execa\index.js:278:16
    at processTicksAndRejections (internal/process/task_queues.js:95:5)
    at async runOnAllDevices (C:\Users\username\Desktop\code\React Native\Build App\Scheduler\node_modules\@react-native-community\cli-platform-android\build\commands\runAndroid\runOnAllDevices.js:106:5)
    at async Command.handleAction (C:\Users\username\Desktop\code\React Native\Build App\Scheduler\node_modules\react-native\node_modules\@react-native-community\cli\build\index.js:192:9)info Run CLI with --verbose flag for more details.

我使用基本的react-native init projectTesting 创建了我的目录

我的 gradle 是 6.9 版
.\android\gradle\wrapper\gradle-wrapper.properties =>distributionUrl=https\://services.gradle.org/distributions/gradle-6.9-all.zip

我的安卓工作室版本是Android Studio 2020.3.1

我的java版本是15

C:\Users\username>java -version
java version "15" 2020-09-15
Java(TM) SE Runtime Environment (build 15+36-1562)
Java HotSpot(TM) 64-Bit Server VM (build 15+36-1562, mixed mode, sharing)

C:\Users\username>javac -version
javac 15

我正在考虑使用 java 17，但在 compatibility docs 中它说：

执行 Gradle 需要 8 到 15 之间的 Java 版本。爪哇 16 执行 Gradle 时暂不支持及更高版本。

任何帮助都会非常真的感激！

Answer 1

确保在终端中使用 JAVA_HOME 路径

echo %JAVA_HOME%

拥有 \bin 是一个常见错误，而 \bin 应该在 PATH 中，java home 只是你的 jdk 文件夹，如 C:\Program Files\Java\jdk-15 。

删除 jdk-17 文件夹，然后卸载 31 和 30 版本的 sdk 构建工具，这应该可以解决问题。

很高兴我能帮上忙。

Answer 2

删除 Java17 SDK 和 C:\Program Files\Java 文件夹对我有用。使用 openjdk11 代替 Java17 SDK