Failed to load property source from location 'classpath:/application.yml'错误

当我创建号springCloud项目后,我写完了我代码,启动时出现如下问题:
Failed to load property source from location 'classpath:/application.yml'错误
一般出现这种问题有三种解决方式:
①yml文件格式不正确,检查格式
②改变编码,File–>Settings–>File Encodings,这三个地方设置成UTF-8格式
Failed to load property source from location 'classpath:/application.yml'错误
③把yml文件里的中文注释全部删除