npx react-native 运行-android 不启动模拟器并且不 运行 如果模拟器是 运行ning
npx react-native run-android doesn't start emulator and doesn't run if emulator is running
我使用 react-native 0.63 创建了一个新项目
当我 运行 在 ios 模拟器上时一切正常
但是当尝试在 android 上 运行 它时，它不起作用并给我这个错误
FAILURE: Build failed with an exception.
* What went wrong:
Could not determine the dependencies of task ':app:installDebug'.
> SDK location not found. Define location with an ANDROID_SDK_ROOT environment variable or by setting the sdk.dir path in your project's local properties file at '/Volumes/SSD2/developer/MyProject/AwesomeProject/android/local.properties'.
* 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 2s
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 app:installDebug -PreactNativeDevServerPort=8081
我像安装react-native一样
react-native Setting up
这是我的反应本机医生的输出
✓ Node.js
✓ npm
✓ Watchman - Used for watching changes in the filesystem when in development mode
Android
✓ JDK
✓ Android Studio - Required for building and installing your app on Android
✖ Android SDK - Required for building and installing your app on Android
- Versions found: N/A
- Version supported: 29.0.2
✖ ANDROID_HOME
iOS
✓ Xcode - Required for building and installing your app on iOS
✓ CocoaPods - Required for installing iOS dependencies
✓ ios-deploy - Required for installing your app on a physical device with the CLI
Errors: 2
Warnings: 0
如果我 运行 npx react-native 启动，那么来自 android studio 的应用程序 运行s 会很顺利。
编辑
如果我 运行 从终端源项目 .bash_profile
模拟器启动但项目未启动运行
"--no-jetifier" flag.
Jetifier found 5194 file(s) to forward-jetify. Using 12 workers...
info JS server already running.
info Installing the app...
env: sh\r: No such file or directory
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 app:installDebug -PreactNativeDevServerPort=8081
env: sh\r: No such file or directory
看来您需要设置 ANDROID_HOME 环境变量。
将以下行添加到您的 $HOME/.bash_profile 或 $HOME/.bashrc（如果您使用的是 zsh，则为 ~/.zprofile 或 ~/.zshrc）配置文件:
export ANDROID_HOME=$HOME/Library/Android/sdk
export PATH=$PATH:$ANDROID_HOME/emulator
export PATH=$PATH:$ANDROID_HOME/tools
export PATH=$PATH:$ANDROID_HOME/tools/bin
export PATH=$PATH:$ANDROID_HOME/platform-tools
键入 source $HOME/.bash_profile for bash 或 source $HOME/.zprofile 以将配置加载到当前 shell。确认 ANDROID_HOME 已由 运行 echo $ANDROID_HOME 设置，并且适当的目录已通过 运行 echo $PATH.
添加到您的路径中
请确保您使用正确的 Android SDK 路径。您可以在 Android Studio“首选项”对话框的外观和行为 → 系统设置 → Android SDK 下找到 SDK 的实际位置。
参考文献：
- https://reactnative.dev/docs/environment-setup 3.配置ANDROID_HOME环境变量
我使用 react-native 0.63 创建了一个新项目 当我 运行 在 ios 模拟器上时一切正常 但是当尝试在 android 上 运行 它时，它不起作用并给我这个错误
FAILURE: Build failed with an exception.
* What went wrong:
Could not determine the dependencies of task ':app:installDebug'.
> SDK location not found. Define location with an ANDROID_SDK_ROOT environment variable or by setting the sdk.dir path in your project's local properties file at '/Volumes/SSD2/developer/MyProject/AwesomeProject/android/local.properties'.
* 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 2s
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 app:installDebug -PreactNativeDevServerPort=8081
我像安装react-native一样 react-native Setting up
这是我的反应本机医生的输出
✓ Node.js
✓ npm
✓ Watchman - Used for watching changes in the filesystem when in development mode
Android
✓ JDK
✓ Android Studio - Required for building and installing your app on Android
✖ Android SDK - Required for building and installing your app on Android
- Versions found: N/A
- Version supported: 29.0.2
✖ ANDROID_HOME
iOS
✓ Xcode - Required for building and installing your app on iOS
✓ CocoaPods - Required for installing iOS dependencies
✓ ios-deploy - Required for installing your app on a physical device with the CLI
Errors: 2
Warnings: 0
如果我 运行 npx react-native 启动，那么来自 android studio 的应用程序 运行s 会很顺利。
编辑 如果我 运行 从终端源项目 .bash_profile
模拟器启动但项目未启动运行
"--no-jetifier" flag.
Jetifier found 5194 file(s) to forward-jetify. Using 12 workers...
info JS server already running.
info Installing the app...
env: sh\r: No such file or directory
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 app:installDebug -PreactNativeDevServerPort=8081
env: sh\r: No such file or directory
看来您需要设置 ANDROID_HOME 环境变量。
将以下行添加到您的 $HOME/.bash_profile 或 $HOME/.bashrc（如果您使用的是 zsh，则为 ~/.zprofile 或 ~/.zshrc）配置文件:
export ANDROID_HOME=$HOME/Library/Android/sdk
export PATH=$PATH:$ANDROID_HOME/emulator
export PATH=$PATH:$ANDROID_HOME/tools
export PATH=$PATH:$ANDROID_HOME/tools/bin
export PATH=$PATH:$ANDROID_HOME/platform-tools
键入 source $HOME/.bash_profile for bash 或 source $HOME/.zprofile 以将配置加载到当前 shell。确认 ANDROID_HOME 已由 运行 echo $ANDROID_HOME 设置，并且适当的目录已通过 运行 echo $PATH.
添加到您的路径中请确保您使用正确的 Android SDK 路径。您可以在 Android Studio“首选项”对话框的外观和行为 → 系统设置 → Android SDK 下找到 SDK 的实际位置。
参考文献：
- https://reactnative.dev/docs/environment-setup 3.配置ANDROID_HOME环境变量