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Unity 2019.3.15f1 fails to run older existing projects

Discussion in 'Editor & General Support' started by Ryan-Hayle, Jun 1, 2020.

  1. Ryan-Hayle

    Ryan-Hayle

    Joined:
    Feb 16, 2014
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    I'm unable to upgrade my project from Unity 2019.3.14f1 to Unity 2019.3.15f1 or simply run an older existing project in Unity 2019.3.15f1. It seems like Unity gets stuck during the importing process before the project opens. I'm just wondering if this issue has already been reported as I continue to use Unity 2019.3.14f1?
     
  2. DiegoDePalacio

    DiegoDePalacio

    Unity Technologies

    Joined:
    Oct 28, 2009
    Posts:
    506
    Hi @Ryan-Hayle,

    Have you tried to delete the `Library` and `Temp` folders before opening your project with the newer version (2019.3.15f1)?


    I hope it helps!
     
  3. Ryan-Hayle

    Ryan-Hayle

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    Feb 16, 2014
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    Yes, it was the first thing I tried.
     
  4. DiegoDePalacio

    DiegoDePalacio

    Unity Technologies

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    Hi @Ryan-Hayle ,

    Depending on the size of your project, the importing process can take a lot.

    Have you checked what is happening in the Editor log?
     
  5. Ryan-Hayle

    Ryan-Hayle

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    Feb 16, 2014
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    Hi @DiegoDePalacio

    Thank you for the info, I think slow might be the problem:
    e.g. 22 minutes just to import a 200KB prefab, is this considered a normal import time?

    Start importing Assets/Test/Prefabs/PickUps/Objects To Drop Pickups/Chests/Chest Locked (With Move Device To Camera).prefab using Guid(007f7ee243de0bf4b936f3f98dfbe44a) Importer(-1,00000000000000000000000000000000)
    Done importing asset: 'Assets/Test/Prefabs/PickUps/Objects To Drop Pickups/Chests/Chest Locked (With Move Device To Camera).prefab' (target hash: '1c69a4da2b39ea75af595fdb95a892c0') in 1361.624040 seconds

    I'm currently waiting for a Skill Point Pickup (Button).prefab (18KB) now.
    1 hour 30 minutes later and I'm still waiting...

    Are you able to check that you have not broken the prefabs or some hierarchy loop during import, as Importing iteration 8 for over an hour seems to imply that you have?
     
    Last edited: Jun 3, 2020
  6. SteenLund

    SteenLund

    Unity Technologies

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    Jan 20, 2011
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    @Ryan-Hayle

    Any chance you can share your project so we can profile and see what is going on? I would not expect prefab importing to be this slow.
     
  7. zastroph

    zastroph

    Joined:
    Aug 13, 2017
    Posts:
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    I had exactly the same problem, with the same file "Skill Point Pickup (Button).prefab". There is nothing wrong with the file. I created a new project with an earlier version of Unity, and it imports it with no problem at all.

    If you want to reproduce the problem. Create a new project with the latest version of Unity. Then try to import the Game Controller Kit asset. I tried several times, it failed every time!
     
  8. SteenLund

    SteenLund

    Unity Technologies

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    @zastroph

    Thanks, we will take a look at it
     
  9. Ryan-Hayle

    Ryan-Hayle

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    @SteenLund Thank you for you help. I have sent the failing Skill Point Pickup (Button).prefab package as a private message.
     
  10. Ryan-Hayle

    Ryan-Hayle

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    Feb 16, 2014
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    @SteenLund Any update on this issue, were you able to reproduce it? The cause of the issue seems to be the asset database v2 in Unity 2019.3.15f1 and above.
     
    Last edited: Jun 10, 2020
  11. SteenLund

    SteenLund

    Unity Technologies

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    @Ryan-Hayle I haven't gotten to this issue yet, but a different bug was investigated yesterday and endless recursion was discovered in the assetdatabase. I will check today if this is the same thing here
     
  12. SteenLund

    SteenLund

    Unity Technologies

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    DiegoDePalacio likes this.
  13. Ryan-Hayle

    Ryan-Hayle

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    That's great, thank you for your help!
     
  14. Ryan-Hayle

    Ryan-Hayle

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    Last edited: Jul 16, 2020
    hopeful likes this.
  15. stevechepp

    stevechepp

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    May 17, 2015
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    I can verify it also happens in the Alpha and Beta updates.
    @SteenLund Any word on this?
     
  16. hopeful

    hopeful

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    Nov 20, 2013
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    5,676
    If this is supposed to be fixed in 2019.4.2f1 ... it isn't.
     
  17. GermyGames

    GermyGames

    Joined:
    May 20, 2012
    Posts:
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    I'm getting this issue in both 2019.4.2 and 2019.4.4

    The editor is literally unusable.
     
    hopeful likes this.