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在启动flask服务器的时候会出现错误，mongodb的服务器也已经启动了。
Already solved, I forgot to add the answer...MONGOALCHEMY_CONNECTION_STRING = 'mngodb://localhost:27017'No need to configure the library name here
MONGOALCHEMY_CONNECTION_STRING
Is it possible that your configuration file is not loaded
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Already solved, I forgot to add the answer...
MONGOALCHEMY_CONNECTION_STRING= 'mngodb://localhost:27017'No need to configure the library name here
Is it possible that your configuration file is not loaded