build failing when phonertc is installed

I'm trying to install this plugin for my ionic project. I used this command to install:

```
ionic plugin add https://github.com/alongubkin/phonertc.git --verbose
```

And I got this as a response:

```
Install start for "com.dooble.phonertc" on browser.
Beginning processing of action stack for browser project...
Action stack processing complete.
Preparing browser project
Processing configuration changes for plugins.
Iterating over installed plugins: [ 'com.ionic.keyboard',
'cordova-plugin-camera',
'cordova-plugin-whitelist',
'org.apache.cordova.console',
'org.apache.cordova.device',
'org.apache.cordova.file',
'org.apache.cordova.file-transfer',
'org.apache.cordova.splashscreen',
'com.dooble.phonertc' ]
Writing out cordova_plugins.js...
Install complete for com.dooble.phonertc on browser.
Running command: /home/wern/www/chatapp/chatapp/hooks/after_plugin_add/010_register_plugin.js /home/wern/www/chatapp/chatapp
Installing plugin from url
got pluginXmlPath: /home/wern/www/chatapp/chatapp/https:/github.com/alongubkin/phonertc.git/plugin.xml
Command finished with error code 0: /home/wern/www/chatapp/chatapp/hooks/after_plugin_add/010_register_plugin.js /home/wern/www/chatapp/chatapp
```

It seems to have been installed without problems. But when I run `ionic build android` to build the apk, I get this error:

```
:compileDebugJava/home/wern/www/chatapp/chatapp/platforms/android/src/com/dooble/phonertc/PhoneRTCPlugin.java:316: error: cannot find symbol
webView.addView(_videoView, _videoParams);
^
symbol: method addView(VideoGLView,LayoutParams)
location: variable webView of type CordovaWebView
/home/wern/www/chatapp/chatapp/platforms/android/src/com/dooble/phonertc/PhoneRTCPlugin.java:336: error: cannot find symbol
webView.removeView(_videoView);
^
symbol: method removeView(VideoGLView)
location: variable webView of type CordovaWebView
/home/wern/www/chatapp/chatapp/platforms/android/src/com/dooble/phonertc/PhoneRTCPlugin.java:420: error: cannot find symbol
webView.removeView(_videoView);
^
symbol: method removeView(VideoGLView)
location: variable webView of type CordovaWebView
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
3 errors
FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileDebugJava'.
> Compilation failed; see the compiler error output for details.

* 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: 57.301 secs

/home/wern/www/chatapp/chatapp/platforms/android/cordova/node_modules/q/q.js:126
throw e;
^
Error code 1 for command: /home/wern/www/chatapp/chatapp/platforms/android/gradlew with args: cdvBuildDebug,-b,/home/wern/www/chatapp/chatapp/platforms/android/build.gradle,-Dorg.gradle.daemon=true
ERROR building one of the platforms: Error: /home/wern/www/chatapp/chatapp/platforms/android/cordova/build: Command failed with exit code 8
You may not have the required environment or OS to build this project
Error: /home/wern/www/chatapp/chatapp/platforms/android/cordova/build: Command failed with exit code 8
at ChildProcess.whenDone (/home/wern/.nvm/v0.10.33/lib/node_modules/cordova/node_modules/cordova-lib/src/cordova/superspawn.js:131:23)
at ChildProcess.emit (events.js:98:17)
at maybeClose (child_process.js:756:16)
at Process.ChildProcess._handle.onexit (child_process.js:823:5)
```

Any ideas on what the problem is?