Mac Os X Needs To Repair Your Library

  1. Repair Mac Os Install
  2. Repair Mac Os Boot

May 14, 2016  Help with 'os x needs to repair library to run applications'! Hey guys looking for some help with a major issue I'm having with my iMac. I recently purchased a used iMac and it was working well until I decided to go ahead and start changing the admin name and eventually the 'home directory'. Use Terminal to fix the error. Restart your Mac and hold Command + R to enter into Recovery Mode. When your computer is turned on, go to Utilities and open Terminal. In Terminal type resetpassword and click return. Choose your Systemdrive. Select your username from the list. Click Reset Home. Some users can log into windows and macs fine - correctly seeing all their files etc on both systems. Some users can log into the PC side of things fine, but when logging into an AD bound mac get this error: 'OS X needs to repair your Library to run applications'. No amount of agreeing to this fixes the problem. Re: macOS needs to repair your library to run applications Jmalla Jul 12, 2017 5:11 PM ( in response to wila ) Hi Wil - the issue is that the corrupted installation messed up and changed every folder and file under my user account to the root user. 'macOS needs to repair your library to run applications' 0 1 My wife's computer (a recent Mac Mini, still running Mojave) has gotten into an impossible state. After rebooting I keep getting this message: 'macOs needs to repair your Library to run application. Type your password to allow this.' I google around a bit, but of course there is nothing about the last Apple Os. I already did a disk utility repair, which actually should also fix permission issue, but no luck. Dec 12, 2016  The above tricks also work to reveal and show the same user /Library folder in Mac OS X versions El Capitan and Yosemite (10.11.x and 10.10.x), and presumably forward beyond macOS 10.14.x, 10.13.x, and 10.12.x.

Your home folder contains many files and folders that apps on your Mac have permission to read or modify. If you use Get Info or other methods to change those permissions, you could experience issues such as these:

  • Changes that you make in System Preferences aren't saved after you quit System Preferences.
  • Changes that you make to the Dock aren't saved after you log out of your user account.
  • Windows that were open the last time you logged out or quit an app (before you changed permissions) open again after you log in or open the app.
  • You're asked for an administrator name and password when moving certain items in the home folder.
  • You repeatedly get a message that macOS needs to repair your Library to run applications.
  • When saving changes to an item, you get a message that the file is locked or you don't have permission to save.
  • Preview, TextEdit, or other sandboxed apps unexpectedly quit when opened.
  • You get an alert that the startup disk has no more space available for application memory.
  • Activity Monitor shows that Safari or SafariDAVClient is using a large amount of system resources.
  • Your Mac performs slowly.
  • iTunes says that your device cannot be synced.
  • Photos and videos that you import into Photos or iPhoto don't appear within the app, but do appear in Finder. Or your library needs to be updated or reselected each time you open Photos or iPhoto.

Reset permissions

If the issue started after changing the permissions of items in your home folder , use these steps to reset permissions.

You can also sync them to iOS devices and view them on Apple TV. And if you want to use your own images as your desktop picture or screen saver, the images need to be in your System Photo Library before you can select them in System Preferences.If you have only one photo library, then it's the System Photo Library. Cannot select phone library in photos mac os. If you choose a different library in Photos without designating it as the System Photo Library, the iCloud tab in Photos preferences is disabled:If you designate a new library as the System Photo Library and then turn on iCloud Photos, the photos and videos in the new library will merge with those already in your iCloud Photos. You can use iCloud Photos, Shared Albums, and My Photo Stream only with the System Photo Library.

Repair Mac Os Install

  1. Turn on or restart your Mac, then immediately press and hold Command (⌘)-R to start up from macOS Recovery.
  2. You might be prompted to enter a password, such as a firmware password or the password of a user who is an administrator of this Mac. Enter the requested password to continue.
  3. When you see the macOS Utilities window, choose Utilities > Terminal from the menu bar.
  4. Type repairHomePermissions in the Terminal window, then press Return. The Repair Home app opens.
  5. Select your user account, click Next, then enter your administrator password. Click Next unlock the volume and begin resetting permissions on your home directory.
  6. When done, click Exit to return to the macOS Utilities window.
  7. Select Reinstall macOS, then click Continue and follow the onscreen instructions to reinstall macOS.

If the issue persists

If resetting permissions doesn't resolve the issue:

Repair Mac Os Boot

  1. Make sure that you have a backup of your Mac, then erase your startup disk.
  2. When done, reinstall macOS.
  3. After installation completes and your Mac restarts to the setup assistant, create a new user account using a different name than the one you were using before. Any difference in spelling is enough.
  4. If you made a Time Machine backup, use Migration Assistant to restore all your files from the backup.