What's causing "The managed object model version used to open the persistent store is incompatible with the one that was used to create the persistent store." on startup?

I hope someone can give me a clue on what program might causing this message or how to get rid of it. This message started popping up yesterday, and after I click "ok" the computer functions normally (as far as I can tell), but it is really bothersome. It shows up on startup, not when I open any specific app. A logo shows up in the message, I don'y know if ti is a regular Mac OS logo or if it might give a clue to what app in specific is causing it. I am enclosing a screen capture (the message is in spanish as my Mac OS is en spanish, but the actual english language message would be "The managed object model version used to open the persistent store is incompatible with the one that was used to create the persistent store."


It's showing up on both MB Pro's I have:.


MBPro 2017 15"

MacBook Pro (Retina, 13-inch, Late 2013)


Both are running Mac OS High Sierra 10.13.4. I guess it must be some app I installed or updated in the last couple of days, but I'm really clueless. I am enclosing a screen capture of the message.


Thanks in advance for your help.

User uploaded file

MacBook Pro (Retina, 13-inch, Late 2013), macOS High Sierra (10.13.4)

Posted on Apr 5, 2018 10:14 AM

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Posted on Apr 6, 2018 7:08 AM

You are quite right - Day One was causing the issue.

I have found that I can fix it without uninstalling Day One.

I disabled 'Show Menu Bar Entry' in the Preferences. Restarted. Re-enabled Menu Bar Entry. Restarted again.

Now I have Day One running and no error message.


Thanks All

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What's causing "The managed object model version used to open the persistent store is incompatible with the one that was used to create the persistent store." on startup?

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