Issue with latest Nativescript Angular Project

[vijaykumarmahato]

Created a new Nativescript Angular project and trying to integrate Deeplink concept.
Did followed the Code sample and created 2 files. But running "tns build android" I am getting the below error. Can you please help me out with the issue.

Error:
(node:67213) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use
the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.
Warning: there already is an extend called com.tns.NativeScriptActivity.
Warning: The static binding generator will generate extend from:app/activity.js implementation
Exception in thread "main" java.io.IOException: File already exists. This may lead to undesired behavior.
Please change the name of one of the extended classes.
File:/Users/jcrdeveloper/Vijay/POC/NativeScript/DeepLink/platforms/android/app/src/main/java/com/tns/NativeScriptAc
tivity.java Class: com.tns.NativeScriptActivity
at org.nativescript.staticbindinggenerator.Generator.writeBindings(Generator.java:81)
at org.nativescript.staticbindinggenerator.Main.main(Main.java:47)

FAILURE: Build failed with an exception.