If you receive this message:
” … can’t be opened because it is from an unidentified developer”
than go to Security & Privacy settings on your computer and choose to “Open Anyways”
How to update your Security & Privacy Settings
1 – Go to System Preferences
2 – Select Security & Privacy
3 – Choose to “Open Anyway”
Alternatively, to override your security settings and open the app anyway:
- In the Finder, locate the app you want to open.
(Don’t use Launchpad to do this. Launchpad doesn’t allow you to access the shortcut menu.)
- Press the Control key, then click the app icon.
- Choose Open from the shortcut menu.
- Click Open.
The app is saved as an exception to your security settings, and you will be able to open it in the future by double-clicking it, just like any registered app.
To learn more visit: http://support.apple.com/kb/HT5290