package com.boot; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.SpringApplication; //make sure spring boot doesn't attempt 2.1 config @SpringBootApplication(exclude={org.springframework.boot.autoconfigure.thymeleaf.ThymeleafAutoConfiguration.class} ) public class AppApplication { public static void main(String[] args) { SpringApplication.run(AppSecurityApplication.class, args); } }