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My project is 2018.3,use 2019.3 open mistake

Discussion in '2019.3 Beta' started by unity3dxiaoyu, May 22, 2019.

  1. unity3dxiaoyu

    unity3dxiaoyu

    Joined:
    Jun 5, 2018
    Posts:
    10
    My project is 2018.3. Today I used 2019.3 to open the project, and there was an error after opening the project. What should I do? thank you
     
  2. julian-moschuering

    julian-moschuering

    Joined:
    Apr 15, 2014
    Posts:
    529
    I guess Unity should remove alpha and beta version from Hub by default. Well, at least they teach some people why to use version control systems.

    What you can try:
    1. Fix the issues you have with 2019.3.
    2. You can try to delete your Library folder and reopen in 2018.3.
    3. Create a new project and move your Assets folder over. Delete all *.meta files from the Assets folder. This will work but importer settings and project settings will be lost.

    In any case: at least create a manual backup before you proceed.
     
  3. M_R

    M_R

    Joined:
    Apr 15, 2015
    Posts:
    559
    don't delete the meta.
    that will change all the assets guids and break all the references
     
    julian-moschuering and Peter77 like this.
  4. julian-moschuering

    julian-moschuering

    Joined:
    Apr 15, 2014
    Posts:
    529
    Oh, yeah, sorry about that. I'm pretty sure the normal assets with the new metas normally get downgraded pretty well but you will lose some properties.
    The project preference files got heavily modified, so if they got written out already you might need a new project and move the assets folder over.

    What are the problems you have with 2019.3? I don't think there were a lot of breaking changes.