CODE EXAMPLE FOR JAVA

caused by: java.lang.runtimeexception: no installed build tools found. install the android build tools version 19.1.0 or higher.

Fix it by downloading sdk package called platform-tools and buid-tools using sdkmanager. You can use sdkmanager.exe or if you use SDK CLI, go to ~AppDataLocalAndroidsdk	oolsin and run this command:

sdkmanager "platform-tools" "platforms;android-26"

This should fix the problem.