Proxy error :couldnot proxy request [How to Solve]

Proxy error:couldnot proxy request


The proxy error problem is because the port number is occupied. The 500 problem on the front end indicates that there is a problem with the back-end server, not the proxy in the front-end vue.config. Check whether the front and rear ports are consistent and whether the database is connected.


All changed to local environment

Common web page code

100: continue

200: successful

400: bad request

401: unauthorized

403: the server rejects the request and prohibits

404: the server cannot find the requested page

405: prohibit the method specified in the request

408: request timeout

414: the requested URL is too long for the server to process

500: server internal error

505: the server does not support all HTTP protocol versions in the request

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