我是春季靴的新手。当我运行项目时，控制台将显示以下内容：
Mapped "{[/edit-skill]}" onto public java.lang.String com.app.controller.ApplicationSkill.editSujet(int,javax.servlet.http.HttpServletRequest)
2018-11-21 09:43:33.122 INFO 10824 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/delete-skill]}" onto public java.lang.String com.app.controller.ApplicationSkill.deleteskill(int,javax.servlet.http.HttpServletRequest)
2018-11-21 09:43:33.124 INFO 10824 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/save-user],methods=[GET]}" onto public java.lang.String com.app.controller.RestController.saveUser(java.lang.String,java.lang.String,java.lang.String,int,java.lang.String,java.lang.String)
2018-11-21 09:43:33.133 INFO 10824 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/save-entreprise],methods=[GET]}" onto public java.lang.String com.app.controller.ResteController.saveEntreprise(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,com.app.model.User,com.app.model.Sujet)
2018-11-21 09:43:33.135 INFO 10824 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/save-skillUser],methods=[POST]}" onto public java.lang.String com.app.controller.ResteSkillController.saveSujet(com.app.model.Skill,com.app.model.Skill)
2018-11-21 09:43:33.143 INFO 10824 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2018-11-21 09:43:33.145 INFO 10824 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2018-11-21 09:43:33.304 INFO 10824 --- [ restartedMain] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-11-21 09:43:33.304 INFO 10824 --- [ restartedMain] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-11-21 09:43:34.336 INFO 10824 --- [ restartedMain] o.s.b.d.a.OptionalLiveReloadServer : LiveReload server is running on port 35729
2018-11-21 09:43:34.490 INFO 10824 --- [ restartedMain] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2018-11-21 09:43:34.499 INFO 10824 --- [ restartedMain] o.s.j.e.a.AnnotationMBeanExporter : Bean with name 'dataSource' has been autodetected for JMX exposure
2018-11-21 09:43:34.522 INFO 10824 --- [ restartedMain] o.s.j.e.a.AnnotationMBeanExporter : Located MBean 'dataSource': registering with JMX server as MBean [com.zaxxer.hikari:name=dataSource,type=HikariDataSource]
2018-11-21 09:43:34.952 INFO 10824 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8757 (http) with context path ''
2018-11-21 09:43:34.965 INFO 10824 --- [ restartedMain] com.app.Project11Application : Started Project11Application in 31.429 seconds (JVM running for 41.284)
如何解决此错误？