devServer hotOnly confusing error message

[asterikx]

Having configured webpack/hot/dev-server as an entry point as well as set hot to true (inside the devServer configuration object) leads to the error message:

Invalid configuration object. Webpack has been initialised using a configuration object that does not match the API schema.
 - configuration.entry should be one of these:
   object { <key>: string | [string] } | string | [string]
   The entry point(s) of the compilation.

The same accounts for webpack/hot/only-dev-server and hotOnly flag.

This error message seems inappropriate/diffcult to interprete.

[SpaceK33z]

Are you using the CLI or Node.js API?

[asterikx]

CLI. Sorry, I should have mentioned.

[SpaceK33z]

In that case you should not add the entry point manually. I couldn't reproduce your issue. The error is confusing, but previously the server would start with a not correctly working config. With #615 we'll be working on better validation for this.

[SpaceK33z]

I'm assuming this worked for you since you reacted with a thumbs up, feel free to re-open if there is still an issue.