在 android 模拟器上运行 react-native [英] Run react-native on android emulator

问题描述

我尝试在 Mac 上的 genymotion android 模拟器上运行 react-native 应用程序.当我写 react-native run-android 它得到

运行/usr/local/opt/android-sdk/platform-tools/adb 反向 tcp:8081 tcp:8081错误:关闭无法运行 adb reverse:命令失败:/usr/local/opt/android-sdk/platform-tools/adb reverse tcp:8081 tcp:8081在设备上构建和安装应用程序 (cd android && ./gradlew installDebug...无法在设备上安装该应用程序，请阅读上面的错误了解详情.确保您有一个正在运行的 Android 模拟器或已连接的设备设置你的 Android 开发环境:https://facebook.github.io/react-native/docs/android-setup.htmlMacBook-Pro-MacBook:ART-CarefulPeople macbook$

然后我试过了:

1. react-native start
2. react-native run-android

同样的结果.

然后我试过了:

1. react-native bundle --entry-file index.android.js --platform android --bundle-output android/app/src/main/assets/index.android.bundle

2. curl "http://localhost:8081/index.android.bundle?platform=android" -o "android/app/src/main/assets/index.android.bundle"

3. react-native run-android

同样的结果.

我只试过 adb reverse tcp:8081 tcp:8081 它说 error: closed

当我尝试在 android-sdk 模拟器上运行应用程序时，它会出现上述相同的错误，但没有 error: closed.

从 android studio 我可以运行这个应用程序，它可以在 genymotion 上运行.请告诉我我应该怎么做才能在 android 模拟器上运行我的应用程序?

解决方案

我遇到了类似的问题，在花了很多时间和大量搜索这个问题之后，唯一的技巧对我有用:

1. 请安装所需的SDK，如图所示

配置所需的 SDK

2. 如果您已经安装了它，那么您必须更新以下 SDK:
   • Android SDK Tool(更新到最新版本)
   • Android SDK Platform-tools(更新到最新版本)
   • Android SDK Build-tools(更新到最新版本)
   • Android Support Repository Extra 文件夹下(更新到最新版本)
3. 您必须至少安装与安装的 Android SDK Build-tools 相同版本的 Android API &Android SDK Platform-tools 版本如上图 Configure Required SDKs 所示.

<块引用>

注意:在 React-native 官方文档中列为 SDK 要求的支持库的本地 Maven 存储库现在在 SDK 管理器中命名为 Android 支持存储库.

I try to run react-native app on genymotion android emulator on my mac. When I write react-native run-android It gets

Running /usr/local/opt/android-sdk/platform-tools/adb reverse tcp:8081 tcp:8081
error: closed
Could not run adb reverse: Command failed: /usr/local/opt/android-sdk/platform-tools/adb reverse tcp:8081 tcp:8081
Building and installing the app on the device (cd android && ./gradlew installDebug...
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/android-setup.html
MacBook-Pro-MacBook:ART-CarefulPeople macbook$ 

Then I've tried:

1. react-native start
2. react-native run-android

The same result.

Then I've tried:

1. react-native bundle --entry-file index.android.js --platform android --bundle-output android/app/src/main/assets/index.android.bundle

2. curl "http://localhost:8081/index.android.bundle?platform=android" -o "android/app/src/main/assets/index.android.bundle"

3. react-native run-android

The same result.

I've tried just adb reverse tcp:8081 tcp:8081 and it says error: closed

When I try to run app on android-sdk emulator it gets the same error above but without error: closed.

From android studio I can run this app and it works on genymotion. Tell me please what should I do to run my app on android emulator?

解决方案

I had a similar problem, and after spending so much time and lots of searching about this issue the only trick worked for me:

1. Please Install the Required SDKs as shown in this figure

Configure Required SDKs

2. If You have already installed it, so you must have to update the following SDKs:
   • Android SDK Tool (update it to latest version)
   • Android SDK Platform-tools (update it to latest version)
   • Android SDK Build-tools (update it to latest version)
   • Android Support Repository under Extra folder (update it to latest version)
3. You Must have at least Installed the Same version Android API as the installed Android SDK Build-tools & Android SDK Platform-tools version as shown in the Configure Required SDKs figure above.

Note: Local Maven repository for Support Libraries which is listed as the SDK requirement in the official docs of React-native is now named as Android Support Repository in the SDK Manager .

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