Unable to specify output directory

[u3u]

Version

3.0.0-beta.9

Steps to reproduce

$ vue-cli-service build --dest docs

What is expected?

Compile correctly into the docs directory

What is actually happening?

Configuration Error: Avoid modifying webpack output.path directly. Use the "outputDir" option instead.

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The purpose of specifying the output directory is to compile the component into the dist directory and have the example compiled into the docs directory