 
            
            
            
         admin_jim 2017-12-06
  admin_jim 2017-12-06 
                
                转自:http://blog.csdn.net/u010411264/article/details/53636956
D:\rnworkspace\Hello>React-native run-Android 
JS server already running. 
Building and installing the app on the device (cd android && gradlew.bat install 
Debug)… 
Downloading https://services.gradle.org/distributions/gradle-2.4-all.zip 
…………………………………………………………………….. 
…………………………….. 
Unzipping C:\Users\ltn.gradle\wrapper\dists\gradle-2.4-all\6r4uqcc6ovnq6ac6s0tx 
zcpc0\gradle-2.4-all.zip to C:\Users\ltn.gradle\wrapper\dists\gradle-2.4-all\6r 
4uqcc6ovnq6ac6s0txzcpc0 
Exception in thread “main” java.util.zip.ZipException: error in opening zip file
essManager.java:65) 
at org.gradle.wrapper.Install.createDist(Install.java:46) 
at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:126) 
at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61) 
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:5276) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejec
tion id: 2): TypeError: Cannot read property ‘message’ of undefined
这问题原因是在你创建工程gradle-2.4-all包下载不完全或者没有下载所致。 
1.你可以重新创建工程。 
2.下载http://pan.baidu.com/s/1b2Vb2Y包,放在C:\Users\xxxx.gradle\wrapper\dists\gradle-2.4-all下,重新运行
或者使用迅雷 新建下载任务 https://services.gradle.org/distributions/gradle-2.14.1-all.zip 然后放置在如下对应的后面一长串字符的文件夹(先清空后面一长串字符的文件夹)
