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vue打包报错built files are meant to be served over an HTTP server

Tip: built files are meant to be served over an HTTP server. Opening index.html over file:// won't work.  这个其实 就是个 提示并不是报错。 其实 这句话 是告诉 我们  vue打包过后 需要放在服务端 才能预览 打开    如果不放在 服务端   不能正常运行的   如果你想正常

‘Collection‘ object is not callable. If you meant to call the ‘authenticate‘ method on a ‘Database‘

[BUG已解决]链接数据库MongoDB报错: 报错模板如下: ‘Collection’ object is not callable. If you meant to call the ‘authenticate’ method on a ‘Database’ object it is failing because no such method exists. 背景 在使用前后