After installing LaunchNavigator plugin the app fails to build

I wanted to open the default maps app for any device. After installing the plugin i m getting the following error :

/home/power/Ionic_Projects/UrMuv/platforms/android/gradlew: Command failed with exit code 1 Error output:
FAILURE: Build failed with an exception.

What went wrong:
A problem occurred configuring root project 'android'.

Could not resolve all dependencies for configuration ':_debugApkCopy'.
Could not resolve com.squareup.okhttp3:okhttp:3+.
Required by:
project :
> Could not resolve com.squareup.okhttp3:okhttp:3+.
> Failed to list versions for com.squareup.okhttp3:okhttp.
> Unable to load Maven meta-data from https://jcenter.bintray.com/com/squareup/okhttp3/okhttp/maven-metadata.xml.
> Could not GET 'https://jcenter.bintray.com/com/squareup/okhttp3/okhttp/maven-metadata.xml'.
> Connect to jcenter.bintray.com:443 [jcenter.bintray.com/35.161.20.85, jcenter.bintray.com/52.34.155.241] failed: Connection refused (Connection refused)
> Could not resolve com.squareup.okhttp3:okhttp:3+.
> Failed to list versions for com.squareup.okhttp3:okhttp.
> Unable to load Maven meta-data from https://maven.google.com/com/squareup/okhttp3/okhttp/maven-metadata.xml.
> Could not GET 'https://maven.google.com/com/squareup/okhttp3/okhttp/maven-metadata.xml'.
> Connect to maven.google.com:443 [maven.google.com/216.58.196.99] failed: Connection refused (Connection refused)

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

[ERROR] An error occurred while running cordova run android --device (exit code
1).