[Bug]: flat config crash when using manual plugin def and recommended config

[bradzacher]

[Bug]: flat config crash when using manual plugin def and recommended config

[ljharb]

@me4502 at the moment we don't support flat config at all, but indeed it needs to be fixed.

[me4502]

It's also worth noting that this affects using multiple configurations from this plugin too. It prevents using both the flat recommended and jsx-runtime configurations at the time time for example, which is the recommended configuration when using the React 17 JSX transform.

[michaelfaith]

I believe this is actually to do with the fact that the recommended config defines the plugin, and your config which uses the recommended config is also defining the plugin. It shouldn't have anything to do with plugins being defined in other places in the package. Can you try removing from your config?

{
  plugins: {
    react: eslintReact,
  },
},