iMessages refuses to open on macbook

Last night, iMessages on my Macbook Pro was working fine.  This morning, he refuses to open and I continually have to force quit.  I restarted my computer several times for nothing doesn't.  The only thing I can think is I changed the Admin password before going to bed, but can't see how this is related.  Help, please!

May be a corrupt .plist.

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

Quit the application.

Go to Finder and select your user folder. With this Finder window as the windshield, select Finder/display/display options for presenting or order - J.  When the display options opens, check "show the library folder. This should make your visible user library folder in your user folder.  Select the library. Then go to Preferences/com.apple.iChat.plist.  Move the .plist on your desktop.

Restart your computer, open the application and test. If it works fine, delete the plist for the office.

If the application is the same, return the .plist where you got it, crushing the latest.

If this does not work, repeat the above, but remove the com.apple.imagent.plist

Thank you Leonie and Ralph Johns (UK) , that some information contained in the present.

If this does not work,

Make a backup using Time Machine or a cloning program, to ensure that data files can be recovered. Two backups are better than one.

Try to set up another admin user account to see if the same problem persists. If back to my Mac is enabled in system preferences, the guest account will not work. The intention is to see if it is specific to an account or a system wide problem. This account can be deleted later.

Isolate a problem by using a different user account

If the problem is still there, try to start safe mode using your usual account.  Disconnect all devices except those necessary for the test. Shut down the computer and then put it up after a 10 second wait. 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. Startup is considerably slower than normal. This will reset some caches, forces a check for directory and disables all start-up and connection, among other things. When you restart normally, the initial restart may be slower than normal. If the system is operating normally, there may be 3rd party applications that pose a problem. Try to delete/disable the third-party applications after a reboot using the UN-Installer. For each disable/remove, you need to restart if you do them all at once.

Safe mode

Safe mode - Mavericks

Tags: Mac OS & System Software

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