Announcement: Upgrade to macOS Mojave

With features like Dark Mode, Stacks, and four new built-in apps, macOS Mojave helps you get more out of every click. 
Find out how to upgrade to macOS Mojave >

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.


Question: contacts

I cannot access my contacts. The app will not open. I keep getting error messages and reporting to Apple. This has been going on for months. My contacts ARE there, because they pop up when I email. But I cannot add or delete anything because the app won't open.

iMac, macOS Sierra (10.12.6)

Posted on


Mar 14, 2018 7:47 AM in response to spbrostrand In response to spbrostrand

Great! It appears that the Hosts have moved your post to the appropriate forum. While you're waiting for additional responses, you might want to list the things that you've tried to do to fix the issue. That will give people a place to start.

I'm sorry I don't have any great answers myself. I really don't use Contacts of my Mac.

Best of luck!

Mar 14, 2018 7:47 AM

Reply Helpful

Mar 14, 2018 7:52 AM in response to spbrostrand In response to spbrostrand

What happens when you try to open the application? What error message(s)? I have two suggestions to start with.


Might be a corrupt .plist.

Do a backup, preferably 2 backups on 2 separate drives.

Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Select Library. Then go to Preferences/ Move the .plist to your desktop.

Restart the computer, open the application, and test. If it works okay, delete the plist from the desktop.

If the application is the same, return the .plist to where you got it from, overwriting the newer one.

Thanks to leonie for some information contained in this.


If the problem is still there, try booting into the Safe Mode using your normal account. Disconnect all peripherals except those needed for the test. Shut down the computer and then power it back up after waiting 10 seconds. Immediately after hearing the startup chime, hold down the shift key and continue to hold it until the gray Apple icon and a progress bar appear. The boot up is significantly slower than normal. This will reset some caches, forces a directory check, and disables all startup and login items, among other things. When you reboot normally, the initial reboot may be slower than normal. If the system operates normally, there may be 3rd party applications which are causing a problem. Try deleting/disabling the third party applications after a restart by using the application un-installer or by using the developer’s uninstall instructions. For each disable/delete, you will need to restart if you don't do them all at once. Please post if this worked or not.

Safe Mode - About El Capitan
also Sierra

Safe Mode Startup – El Capitan. also Sierra

If it works in the Safe Mode, try running this program when booted normally and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor. Please use copy and paste as screen shots can be hard to read. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown. You can run the report for free at least once, but if you run it several times, at some point it will ask you to pay a license fee.

Etrecheck – System Information

Mar 14, 2018 7:52 AM

Reply Helpful (1)
User profile for user: spbrostrand

Question: contacts