关于#java#的问题：黑马的瑞吉外卖项目，要用消息转换器把json转为字符串，我一打开消息转换器就报错，把消息转换器注释掉就能运行，用那个idea的依赖helper工具也显示依赖没冲突

黑马的瑞吉外卖项目，要用消息转换器把json转为字符串，我一打开消息转换器就报错，把消息转换器注释掉就能运行，用那个idea的依赖helper工具也显示依赖没冲突

完整报错：Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.function.support.RouterFunctionMapping]: Factory method 'routerFunctionMapping' threw exception; nested exception is java.lang.IllegalArgumentException: CBORFactory required: com.fasterxml.jackson.databind.MappingJsonFactory