我在Windows 10系统上创建了一个新的react-native
项目,安装了react-native-maps
软件包和rnpm link
,但在启动项目时出现Build failed错误。
是什么导致了这个问题?
react-native init myapp
npm install react-native-maps --save
rnpm link
react-native run-android
版本
react-native-cli: 1.3.0
react-native: 0.39.1
node: v7.2.1
npm: 3.10.10
错误
JS server already running.
Running C:\Users\y\AppData\Local\Android\Sdk/platform-tools/adb -s emulator-5554 reverse tcp:8081 tcp:8081
Building and installing the app on the device (cd android && gradlew.bat installDebug)...
:app:preBuild UP-TO-DATE
:app:preDebugBuild UP-TO-DATE
:app:checkDebugManifest
:app:preReleaseBuild UP-TO-DATE
:react-native-maps:compileLint
:react-native-maps:copyReleaseLint UP-TO-DATE
:react-native-maps:preBuild UP-TO-DATE
:react-native-maps:preReleaseBuild UP-TO-DATE
:react-native-maps:checkReleaseManifest
:react-native-maps:preDebugAndroidTestBuild UP-TO-DATE
:react-native-maps:preDebugBuild UP-TO-DATE
:react-native-maps:preDebugUnitTestBuild UP-TO-DATE
:react-native-maps:preReleaseUnitTestBuild UP-TO-DATE
:react-native-maps:prepareComAndroidSupportAppcompatV72301Library FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':react-native-maps:prepareComAndroidSupportAppcompatV72301Library'.
> Could not expand ZIP 'C:\Users\y\AppData\Local\Android\sdk\extras\android\m2repository\com\android\support\appcompat-v
7\23.0.1\appcompat-v7-23.0.1.aar'.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 7.247 secs
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
(node:8824) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 2): TypeError: Cannot read prop
erty 'message' of undefined
(node:8824) DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are
not handled will terminate the Node.js process with a non-zero exit code.
答案 0 :(得分:5)
我有这个问题。尝试在Android Studio中打开您的项目。在右上角有一些通知,您需要更新Android构建工具和平台工具。
答案 1 :(得分:3)
我经常面对这些问题 这是Windows问题。据我所知,这是因为扩展zip需要花费太多时间而构建器失败。 我通过将项目文件夹移动到ssd并将项目文件夹添加到我的防病毒软件的例外来最小化此类警告
执行' react-native run-android'越来越多,它将在一段时间内完成
答案 2 :(得分:2)
您需要根据此issue
进行以下操作cd android && gradlew clean && cd .. && react-native run-android
答案 3 :(得分:0)
cd android
gradlew clean
cd ..
react-native run-android
或
cd android && gradlew clean && cd .. && react-native run-android