hyper-spec throws uninitialized constant Selenium::WebDriver::Firefox::Service

When upgrading to hyper-spec i get a strange

uninitialized constant Selenium::WebDriver::Firefox::Service

although i don't user Selenium::WebDriver::Firefox::Service anywhere in my code (only references to Selenium::WebDriver::Firefox)

A solution i have found and according to https://github.com/titusfortner/webdrivers

Is to try and execute:

Webdrivers::Geckodriver.update

in rails console.

This updates the local Geckodriver automatically

as @catmando noted, if hyper-spec is both in test and development environment 'rails c' might be unusable so remove it temporarilly from the dev env