These packages are obsoleted by the promises API to the built-in Node fs
module. The fs-extra package is also causing problems with broken APIs
that don't behave the same as Node's fs module, and throwing errors
without code properties on them.
The host.controller_url config is required to end with a / for the url
joining logic to work. Fix code added #619 setting this to a value not
ending with a /.
Hornwitser