命令失败：gradlew.bat installDebug

Question

在开发一个应用程序时，我遇到了以下错误。我试图将java版本从11降级到8，但这并没有帮助。

FAILURE: Build failed with an exception.

* What went wrong:
Could not create service of type ScriptPluginFactory using BuildScopeServices.createScriptPluginFactory().
> Could not create service of type PluginResolutionStrategyInternal using BuildScopeServices.createPluginResolutionStrategy().

* 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 15s
Could not install the app on the device, read the error above for details.
Make sure you have an Android emulator running or a device connected and have
set up your Android development environment:
https://facebook.github.io/react-native/docs/getting-started.html

Command failed: gradlew.bat installDebug

Error: Command failed: gradlew.bat installDebug
    at checkExecSyncError (child_process.js:616:11)
    at Object.execFileSync (child_process.js:634:13)
    at runOnAllDevices (C:\Users\samie\Documents\React Native\auth\node_modules\react-native\local-cli\runAndroid\runAndroid.js:299:19)
    at buildAndRun (C:\Users\samie\Documents\React Native\auth\node_modules\react-native\local-cli\runAndroid\runAndroid.js:135:12)
    at isPackagerRunning.then.result (C:\Users\samie\Documents\React Native\auth\node_modules\react-native\local-cli\runAndroid\runAndroid.js:65:12)
    at process._tickCallback (internal/process/next_tick.js:68:7)

Answer 1

我是如何解决这个问题的：

首先，确保设置了%java_home%变量，并且%path%包含了java sdk。如何设置Java环境变量

其次，转到您的android文件夹并运行以下命令：

C:\Projects\myproject\android>gradlew.bat app:installDebug.

C:\Projects\myproject\android>gradlew.bat app:installDebug

现在，您可以回到您的react本机项目并运行

react-native run-android

信息JS服务器已经运行。在设备上建立和安装应用程序（cd android&&gradlew.bat app：installdebug）...

任务：app：installdebug 01:03:18 v/ddms：execute：running am get-config 01:03:18 v/ddms：execute'am get-config'on'emulator-5554':EOF hit。读取：-1 01:03:18 V/ddms:execute:retting APK'app-debug.APK'on'pixel_2_api_28(AVD)-9'for app:debug 01:03:18 d/app-debug.APK：将app-debug.APK上载到设备上'emulator-5554'01:03:18 d/device：将文件上载到设备上'emulator-5554'01:03:18 d/ddms：读取文件C:\projects\xx\android\app\build\outputs\APK\debug\app-debug.“/data/local/tmp/app-debug.APK”01:03:19 v/ddms：在'emulator-5554'上执行'pm install-r-t“/data/local/tmp/app-debug.APK”：EOF命中。阅读：-1 01:03:19 V/ddms：execute：returning 01:03:19 V/ddms：execute：running rm“/data/local/tmp/app-debug.apk”01:03:19 V/ddms：execute'rm“/data/local/tmp/app-debug.apk”on'emulator-5554':EOF命中。阅读：-1 01:03:19 V/DDMS：执行：返回安装在1个设备上。

在9s中成功构建27个可操作的任务：1个已执行，26个最新信息运行C:\users\codeb\appdata\local\android\sdk/platform-tools/adb-s仿真器-5554反向TCP:8081tcp:8081信息在仿真器上启动应用程序-5554(C:\users\codeb\appdata\local\android\sdk/platform-tools/adb-s仿真器-5554 shell am start-n com.myproject/com.myproject.mainactivity)...开始：Intent{cmp=com.myproject/.mainactivity}