I recently downloaded and install some of the application for my Mac OS X, it says unidentified developer installation issue. Not only specific apps mostly installing the 3rd party application from outside the mac app store from internet will get same error. But in my case i was trying to install VLC player everytime it says App cannot be opened because the identity of the developer is cannot be confirmed. Please find the exact message in the below.
“VLC” can’t be opened because the identity of the developer cannot be confirmed
In my macbook i have used Mac OS X EI captation if you have used other version of Mac OS X like yosemite, will get the same error message.
Here is the screenshot for the unidentified developer installation issue.
Fixing Mac Unidentified Developer App Installation issue
If you are installing mac application official App store, you will not be facing any such issues and even if you are download apps from few sites then also will not be facing any issues.
But for most of other mac apps this warning message is basically a security measure and you can quickly fix it by making some changes in security settings of your mac.
Go to the System Preference then select the Security & Privacy, under general tab you can see the setting icon just click that icon, one prompt will open for asking password then enter your system password, it will disable the settings lock so you can make changes in the all greyed option.
In the section Allow application download from, select Anywhere, then it will open another prompt in that select option Allow From Anywhere. Now the configuration are saved you can install the 3rd party application in mac from anywhere. Please find the below screenshot to understand the process.
This method is common for all versions of MAC OS X with Gatekeeper support, including OS X Yosemite 10.10.x, OS X Mavericks, 10.9.x, and Mountain Lion 10.8.x, where the feature was first introduced.
I hope this quick fix will help you installing the 3rd party application anywhere from internet, if you have any doubts please let us know in the comments.