Spring boot project not starting

I have created one spring boot project and having embedded form (html file kept) which i kept in src/main/resource/static/forms folder and gave the reference as embedded:app:forms/testform.html to bpmn file.

public class CamundaStarterApplication extends Application{

public static void main(String... args) {
    SpringApplication.run(CamundaStarterApplication.class, args);

when I adding @EnableProcessApplication annotation. on start of project it giving

java.lang.RuntimeException: org.camunda.bpm.engine.exception.NullValueException: Cannot stop service org.camunda.bpm.platform.process-engine:type=default: no such service registered: service is null

please help me to resolve this issue.