If you’re on macOS Sierra, you may have encountered the below error messages when attempting to install or update Craft Manager:
Update Error! Craft Manager can't be updated when it's
running from a read-only volume like a disk image or an optical drive. Move
Craft Manager to your Applications folder, relaunch it from there, and try
Insecure update error!
For security reasons, you need to code sign your application or sign your
updates with a DSA key. See Sparkle's documentation for more information.
An error occurred while extracting the archive. Please try again later.
This error occurred due to a change in how apps are installed on macOS Sierra. We’ve recently released an update to Craft Manager to address this moving forward. However, those impacted by this problem will need to do a clean install of Craft Manager through the following steps:
Click the Craft icon in the Mac menubar to open Craft Manager.
Click the cogwheel icon, then click Quit.
Delete Craft Manager from your Applications folder.