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Error starting Tomcat

I flow same step, but when run application.

2017-07-06 09:51:55.855 ERROR 29604 --- [ost-startStop-1] o.s.b.c.embedded.tomcat.TomcatStarter : Error starting Tomcat context: org.springframework.beans.factory.BeanCreationException

2017-07-06 09:51:55.886 WARN 29604 --- [ main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat

2017-07-06 09:51:55.903 ERROR 29604 --- [ main] o.s.boot.SpringApplication : Application startup failed


Process finished with exit code 1