Need help with an existing Android App.

There is an open source android app here:

As you will see, this app was developed over 5 years ago. And we have not heard from the original author since.

Due to recent upgrades to our server software, we are in need of updating the existing Android App.

We have tried to open the project with the latest downloads of Android Studio and Ecplise, but the project will not build due to many errors. From my research this is manyly due to outdated imports and API version. I believe the app was created using Eclipse, but would like to see it in Android Studio.

We are looking for a developer to either take over the project as the new author, or at least update the current application to open in Visual Studio with no errors.

Thank you for any advice or help!