gistfile1.txt

$ ./node_modules/.bin/gitbook build
info: 13 plugins are installed
info: 12 explicitly listed
info: loading plugin "panel"... OK
info: loading plugin "sequence-diagrams"... OK
info: loading plugin "ga"... OK
info: loading plugin "codegroup"... OK
info: loading plugin "include-codeblock"...
warn: ace features disabled (`gitbook-plugin-ace` required)
OK
info: loading plugin "highlight"... OK
info: loading plugin "search"... OK
info: loading plugin "lunr"... OK
info: loading plugin "sharing"... OK
info: loading plugin "fontsettings"... OK
info: loading plugin "theme-api"... OK
info: loading plugin "theme-default"... OK
info: found 18 pages
info: found 27 asset files
warn: "options" property is deprecated, use config.get(key) instead

Error: ENOENT: no such file or directory, stat '/home/dhellmann/go/src/github.com/kubernetes-sigs/cluster-api/docs/book/_book/gitbook/gitbook-plugin-codegroup/code.group.css'