- Metro Bundler can't listen on port 8081
解决办法:开启了多个服务,全部关掉,在项目路径下,重新start
2.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
解决办法:
1.android,项目运行环境改变,符合android原生开发时的情况。
-
项目build.gradle。tools.build > 3.0,repositories需要添加maven { url "https://jitpack.io" }
google() -
gradle-wrapper.properties。版本使用本地默认使用
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删除node_modules。改变package.json里面"babel-preset-react-native": "5.0.0" to "babel-preset-react-native": "2.0.1"。Terminal重新npm install,关掉服务,重新start。
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以上还是报错,一定要看Terminal。比如:SDK location not found. Define location with sdk.dir in the local.properties file or with an ANDROID_HOME environment variable.打开studio,编译下环境,再 react-native run-anroid
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