Webpack 5 - why does npm run give an error?

Question

webpack

E:\[Develop]\Projects\exel>npm run start

> [email protected] start E:\[Develop]\Projects\exel
> webpack

(node:139716) [DEP_WEBPACK_TEMPLATE_PATH_PLUGIN_REPLACE_PATH_VARIABLES_HASH] DeprecationWarning: [hash] is now [fullhash ] (also consider using [chunkhash] or [contenthash], see documentation for details)
(Use `node --trace-deprecation ...` to show where the warning was created)
[webpack-cli] [Error: EISDIR: illegal operation on a directory, open 'E:\[Develop]\Projects\exel\dist'] {
errno: -4068,
code: 'EISDIR',
syscall: 'open',
path: 'E:\\[Develop]\ \Projects\\exel\\dist'
}
npm ERR! code ELIFECYCLE
npm ERR! errno 2
npm ERR! [email protected]:
npm ERR! Exit status 2
npm ERR!
npm ERR! Failed at the [email protected] start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\User\AppData\Roaming\npm-cache\_logs\2021-04-22T17_41_39_074Z-debug.log

E:\[Develop]\Projects\exel>

Just getting started with Webpack. Tell me how to fix errors