FontExplorer X Pro detected an unauthorized bundle modification

After upgrading to Yosemite this morning I got the following error from FontExplorer X Pro:

FontExplorer X Pro detected an unauthorized bundle modification. Please download FontExplorer X Pro again.

FEX fatal error on Yosemite

If you have this issue, just download FEX again, and reinstall. Replace the old version of course and you should be good to go. Note: Be sure not to delete it using an app like AppZapper, just a simple reinstall. AppZapper will also delete preference files and the like, and you’ll lose font categories and other customizations.

24 Comments

  1. Fiona Canning on November 12, 2014 at 1:05 am

    didn\’t work for me 🙁

    • Bryan Hoffman on November 12, 2014 at 10:59 am

      Sorry Fiona. Have you tried completely uninstalling / reinstalling? I use AppZapper to ensure everything has been removed.

      Don\’t forget to back up your fonts first though!

      • Fiona on November 12, 2014 at 1:31 pm

        Thanks Bryan, I\’ll give that a try in the morn
        cheers
        Fiona

  2. Michael on November 12, 2014 at 10:57 am

    I haven\’t tried this yet, but what if i\’m not on the latest version? I just upgraded to Mavericks, not Yosemite, and then got this error. And I haven\’t upgraded to FEX 4 yet. Can I just reinstall the version I have?

    • Bryan Hoffman on November 12, 2014 at 11:00 am

      If you can find the version you have that\’s what I\’d try. Back up your fonts first though.

      • Michael on November 12, 2014 at 2:08 pm

        It worked just fine. Thanks for that.

      • Katie on November 16, 2014 at 1:03 pm

        How do you back up your fonts without being able to open the application? I\’m experiencing the same error but I\’m afraid what\’ll happen if I uninstall and reinstall.

        • Bryan Hoffman on November 17, 2014 at 8:43 am

          Katie, depending on how you orgnaize your fonts (I copy to a common directory rather than reference). If you\’re doing it this way backing up font files is just like backing up any other file. If you use Time Machine for example, then you\’d already be backed up.

    • Fiona on November 13, 2014 at 12:58 am

      It worked! Thanks Michael. I tried so many other things….

    • Bryan Hoffman on November 13, 2014 at 8:39 am

      Glad it worked out for you both. Happy font management!

  3. Eric on December 11, 2014 at 2:55 pm

    I got this error as well — Is there anyway to reinstall FontExplorer without losing my font categories? I know it won\’t remove the fonts from my computer, but will I have to reorganize them in FontExplorer again? Because that\’d take days to do (again).

    • Bryan Hoffman on December 11, 2014 at 3:39 pm

      Eric, all of my categories stayed intact. Not that I\’ve got them well organized or anything.

      • Eric on December 11, 2014 at 3:42 pm

        Thanks Bryan! Gonna AppZap it now and hope for the best.

      • Bryan Hoffman on December 11, 2014 at 3:47 pm

        Whoa, no!!!! Don\’t zap it, just reinstall right over!

      • Eric on December 11, 2014 at 3:49 pm

        Ah, I see what you mean after rereading your post. Just replace the old App with the newly downloaded one.

        Thanks again for the great advice, I would\’ve gone crazy if I zapped FEX.

      • Bryan Hoffman on December 11, 2014 at 5:14 pm

        Oh good, glad you didn\’t zap it. Sorry if the article was confusing, I\’ll update it to clarify.

  4. Kristin on January 9, 2015 at 2:27 pm

    Is there a way on to download an installer for version 3 on the mac? I can only find 4 and I do not have my new license yet, but need to do a project

  5. Chet on January 12, 2015 at 11:21 am

    Thanks Bryan, just ran into this today.

    FWIW: I had 3.5.3 installed when I got the error but had to download 3.5.4 to get it working again.

  6. Ramsey Marshall on April 30, 2015 at 9:01 am

    I re-installed FontX 4.2.3 and got the same issue.
    Then i Zapped it and then installed fresh and still got the same issue.
    Plez help.

    • Bryan Hoffman on April 30, 2015 at 11:15 am

      I\’m not sure I can help Ramsey… try submitting a ticket at Linotype and see if they can help.

  7. michelle on October 3, 2015 at 1:27 pm

    hi! so i reinstalled but i am now getting a \”not licensed, 31 days left\” free trial. why couldn\’t i just keep the old version of font explorer? i\’m not to savvy with technical stuff. would yo mind explaining? thanks! -michelle

    • Bryan Hoffman on October 5, 2015 at 8:32 am

      Hi Michelle. Reinstalling was the way I was able to solve the error message. I don\’t know why your license data would have gone away but did you try to enter it again?

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