最新版本的react-native中，官方表示将要移除
AsyncStorage，推荐使用@react-native-community/async-storage，好吧官方经常这么干
按照官方提示
yarn add @react-native-community/async-storage
react-native link @react-native-community/async-storage
好吧，果然不负众望的报错了
错误信息如下
info Starting JS server... info Building and installing the app on the device (cd android && gradlew.bat app:installDebug)... > Task :app:transformDexArchiveWithExternalLibsDexMergerForDebug FAILED FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'. > com.google.gson.stream.MalformedJsonException: Invalid escape sequence at line 1 column 32 path $[0].name * 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 3s 76 actionable tasks: 1 executed, 75 up-to-date error 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 error Command failed: gradlew.bat app:installDebug. Run CLI with --verbose flag for more details.
有关环境信息
info React Native Environment Info: System: OS: Windows 10 CPU: (8) x64 Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz Memory: 4.55 GB / 15.95 GB Binaries: Node: 10.15.3 - D: ode ode.EXE Yarn: 1.16.0 - D:yarninyarn.CMD npm: 6.4.1 - D: ode pm.CMD
解决方案
1.清除yarn缓存 yarn cache clean 2.清除npm缓存 npm cache clean -f 3.在项目文件夹中有一个package.json 文件，里面记录了该项目所有安装的依赖环境，若项目文件出现依赖环境报错的情况，则可以删除依赖node_module文件夹，在重新yarn install 一次 ， 重新安装依赖。 4.对于项目出现出现.../.../debug/.../../文件夹报错，可能是缓存导致的问题，进入android文件夹下，输入命令 ./gradlew clean 命令清除缓存，也可使用android studio 中的菜单按钮的build下的clean project清除环境，在使用rebuild project 重新跑一次项目。