Cannot destructure property `outputOptions` of 'undefined' or 'null'

[Omelettesheep]

I put a demo here, It can repreoduce the bug https://github.com/Omelettesheep/bugDemo

My config

Error

I add thread-loader to the config and the error occurs

[alexander-akait]

Do not use thread-loader, in 99% it is slower than without

[Omelettesheep]

Do not use thread-loader, in 99% it is slower than without

Do not use thread-loader in any case? what about with babel-loader~

[alexander-akait]

You will get more perf when you will use cache.type: "filesystem", built-in parallelization in our roadmap, but using this loader you more get decrease, try to remove it and cache and check it