Search Unity

  1. Unity Asset Manager is now available in public beta. Try it out now and join the conversation here in the forums.
    Dismiss Notice
  2. Megacity Metro Demo now available. Download now.
    Dismiss Notice
  3. Unity support for visionOS is now available. Learn more in our blog post.
    Dismiss Notice

Downgrading from 2019.1 Beta to 2018.3f2 throws an error.

Discussion in '2019.1 Beta' started by JakubSmaga, Feb 1, 2019.

  1. JakubSmaga

    JakubSmaga

    Joined:
    Aug 5, 2015
    Posts:
    417
    Update: https://forum.unity.com/threads/dow...2018-3f2-throws-an-error.622486/#post-4170211



    I know that the second one is caused by the Timeline which is now a separate package in 2019.1, not sure about the first one though. (I think it's because 2.1.1 is only supported by 2019.1)

    upload_2019-2-1_2-3-24.png

    Edit: Removing the Timeline line and downgrading package manager UI to 2.0.3 (By editing the manifest.json file) fixed the problem. I think this should be done automatically when downgrading from 2019.1 -> 2018.3 or lower.
     
    Last edited: Feb 1, 2019
  2. Peter77

    Peter77

    QA Jesus

    Joined:
    Jun 12, 2013
    Posts:
    6,588
    As far as I understand the following message, downgrading a project is unsupported.
    screenshot.png
     
    charlesb_rm and JakubSmaga like this.
  3. Prodigga

    Prodigga

    Joined:
    Apr 13, 2011
    Posts:
    1,123
    Yep you should never expect a downgrade to work correctly. Back up! Restore if it goes wrong! Even better, use source control.
     
    charlesb_rm likes this.
  4. elbows

    elbows

    Joined:
    Nov 28, 2009
    Posts:
    2,502
    In addition to all the other reasons why downgrading is a bad idea, Unity often runs script upgrade stuff when the API changes, and having to undo that does not sound at all practical.
     
    charlesb_rm likes this.