无法使用 android 模拟器打开 React Native 项目

React Native project can't be open with android emulator

我是 React Native 的新手。我开始了一个新项目并遵循了所有步骤。我之前有 Android Studio,我用它启动了模拟器。在 运行 npx react-native run-android 命令后我得到这个错误。

**FAILURE: Build failed with an exception.
* What went wrong:
Task 'installDebug' not found in project ':app'.
* Try:
Run gradlew tasks to get a list of available tasks. 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 34s
error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup. Run CLI with --verbose flag for more details.
Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081
FAILURE: Build failed with an exception.
* What went wrong:
Task 'installDebug' not found in project ':app'.
* Try:
Run gradlew tasks to get a list of available tasks. 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 34s**

然后我 运行 abd -d 命令我明白了。

Android Debug Bridge version 1.0.41
Version 29.0.6-6198805
Installed as C:\Users\User\AppData\Local\Android\Sdk\platform-tools\adb.exe

你能帮我解决这个问题吗?

如前所述here,您可以尝试运行在项目的根文件夹中执行以下命令:

cd android && ./gradlew installDevDebug && cd .. && react-native run-android --variant=DevDebug

在此之后,您的项目应该 运行 在您的 Android 上成功。

如果没有,请使用 android studio 打开您的项目一次,然后使用 react-native run-android

重新编译

如果即使在这之后您的所有项目都无法正常工作,请确保您的 PATH 变量中已经有 ANDROID_HOME 变量