Parse error: invalid root directory

[stp-ip]

Something is going wrong and I seem to not get down to the issue.

I tried the following configs:

    :8080 {
      root /etc/source/files
      gzip
      basicauth / user {$BASICAUTH_PASSWORD}
      search
      log stdout
      errors stdout
    }

    :8080 {
      root /etc/source/files
      gzip
      basicauth / user {$BASICAUTH_PASSWORD}
      search ^/
      log stdout
      errors stdout
    }

    :8080 {
      root /etc/source/files
      gzip
      basicauth / user {$BASICAUTH_PASSWORD}
      search /
      log stdout
      errors stdout
    }

    :8080 {
      root /etc/source/files
      gzip
      basicauth / user {$BASICAUTH_PASSWORD}
      search / /search
      log stdout
      errors stdout
    }

    :8080 {
      root /etc/source/files
      gzip
      basicauth / user {$BASICAUTH_PASSWORD}
      search / {
      }
      log stdout
      errors stdout
    }

It always ends the same:

Parse error: [search]: `invalid root directory`

Caddy has the latest build from the download page.
Thanks for any pointers.