When configuring HMR yourself, you need to install the corresponding dependencies of the front-end framework. For example, under the Vue system, you need to install the vue-hot-reload-api dependency. You can refer to this blog of mine: http://ewind.us/2017/webpack-...
What’s wrong with closing the port when hot reloading is invalid?. If there is a port conflict, even the devServer cannot be started. An error message should be posted here
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Check if your port is occupied
When configuring HMR yourself, you need to install the corresponding dependencies of the front-end framework. For example, under the Vue system, you need to install the vue-hot-reload-api dependency. You can refer to this blog of mine:
http://ewind.us/2017/webpack-...
Modify port 8090 in config/index.js and try it. .
What’s wrong with closing the port when hot reloading is invalid?.
If there is a port conflict, even the devServer cannot be started.
An error message should be posted here