React Native项目无法在Mac上运行

Question

我正在尝试在Mac上运行React Native，我在后台运行Android模拟器并运行，react-native run-android我得到：

=> react-native run-android
Scanning 564 folders for symlinks in /Users/sao/Conv/Conv2/node_modules (19ms)
Starting JS server...
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

React Awesome 项目 ( react-native init) 在本机上运行良好，并且该项目在 Windows 上运行良好。

它说检查上面的错误以获取详细信息，但上面没有错误......

关于如何使其发挥作用有什么想法吗？

Answer 1

尝试adb devices在终端中运行，如果它是空白运行adb kill-server，则继续执行adb start-server