Resolved iMessage won't open after downgrading to 10.10.5

Discussion in 'OS X El Capitan (10.11)' started by khabboub, Aug 20, 2015.

  1. khabboub macrumors member

    Joined:
    Mar 30, 2014
    Location:
    Tampa
    #1
    so i installed pb5, and i noticed that privateinternetaccess (the VPN i use) no longer worked, so i downgraded back to yosemite using time machine, and now iMessage will not open. every time i click on it, i get a dialogue box "messages cannot be opened because of a problem". i uploaded a screen shot of the whole message

    has this happened to anyone? I'm not sure if i should reinstall pb5 and just suck it up for a while, or if there is a solution to all iMessages.
     

    Attached Files:

  2. v1597psh macrumors regular

    v1597psh

    Joined:
    Feb 4, 2014
    Location:
    London
    #2
    Probably because iMessage data base is not backwards compatible. Delete your Messages data base from ~/Library/Messages
     
  3. khabboub thread starter macrumors member

    Joined:
    Mar 30, 2014
    Location:
    Tampa
    #3
    so what i ended up doing was erasing Yosemite, and reinstalling it as a fresh copy, and then using the migrate assistant to transfer all my data back to the mac.
     

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