getting error while npm start

[husainasfak]

[webpack-dev-server] [HPM] Error occurred while proxying request localhost:56652/api/courses to http://localhost:9000/ [ECONNREFUSED] (https://nodejs.org/api/errors.html#errors_common_system_errors)

give me that error how to fix it

[fracergu]

This happens to me when I don't have the backend server running. Are you sure you have started it previously?

run npm server in another terminal before npm start