How to fix webpack-dev-server not found
The bin/webpack-dev-server command is not as smart as e.g. rails server, where it shows the proper fix within the error message.
$ bin/webpack-dev-server
yarn run v1.19.1
error Command "webpack-dev-server" not found.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
Run yarn install --check-files to fix this error.
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