The bean ‘friendLinkMapper‘, defined in com.lyra.admin.mapper.FriendLinkMapper defined in @EnableMongoRepositories declared on AdminApplication, could not be registered. A bean with that name has already been defined in file [/home/lyra/IdeaProjects/imooc-news/news-admin/target/classes/com/lyra/admin/mapper/FriendLinkMapper.class] and overriding is disabled.
新建一个包 将repositories放入即可
spring data MongoDB 重复依赖 Repositories
原文：https://www.cnblogs.com/lyraHeartstrings/p/15312228.html