Can’t be opened because it is from an unidentified developer mac

If you are using Mac OSX El Capitan, Yosemite, Mavericks or similar, you may encounter the following error: This is of course a very sad message if you know the app is from a reputable source Thankfully, there is an easy fix! Step 1. Go to Finder Step 2. Locate the application you are trying to open In my instance it is Finder -> Applications -> VLC Step 3. Hold down the command button while you right click (option click)