Intermittent java error when running Circle CI with nightwatch/selenium/saucelabs

The error is

Exception in thread “main” java.lang.UnsupportedClassVersionError: org/openqa/grid/selenium/GridLauncherV3 : Unsupported major.minor version 52.0

This is the same issue as described here and occurs pretty much every time a new version of webdriver, selenium, or a browser comes out.

You should either manually upgrade the version of these tools so that they match, or pin them so that they are not updated from underneath you.