ionic2 打包时报错 file-opener2

在app自动更新过程中，有用到ionic-native插件：cordova-plugin-file-openner2    添加插件后，打包时有错：

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project 'android'.
> Could not resolve all dependencies for configuration ':_debugCompile'.
> Could not find any version that matches com.android.support:support-v4:+.
Searched in the following locations:
https://repo1.maven.org/maven2/com/android/support/support-v4/maven-metadata.xml
https://repo1.maven.org/maven2/com/android/support/support-v4/
Required by:
:android:unspecified

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

通过一番查询，可能是插件版本问题；

在这儿发现了解决办法-------->

http://stackoverflow.com/questions/42087247/phonegap-android-build-error-old-versions-and-plugins

好，于是就在 config.xml中做了如下更改：

改之前：

<plugin name="cordova-plugin-file-opener2" spec="~2.0.15" />

改之后（如果没有就添加打包的时候 项目会自动添加）：

<plugin name="cordova-plugin-file-opener2" spec="1.0.11" />

好吧----这就可以用了 打包成功！！

总结：自己太菜！