Sorry, but you either have no stories or none are selected somehow.
If the problem persists, check the browser console, or the terminal you've run Storybook from.
@component-controls/blocks
is a library of context-sensitive components to display specific bits of information
about the pages, documents, components and stories in your documentation site.
This package is installed as part of component-controls
and you should never need to install it manually.
You can view a table with the cross-usage of the included components