Error: "The installation failed" when installing on OSX

Issue

When installing TestFit, you get an error stating the installation failed

Cause

Launching the installer from a shared location can potentially cause this issue.

Solution

Disable any file sharing applications you may be utilizing (Box/Dropbox/etc). 

Move the .pkg installer from your Downloads folder to your desktop and try running the installer from there. 

If the error persists TestFit support will need an installation log to troubleshoot the issue.

The steps in this article has steps for generating an installation log