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Bug Cannot connect debugger to Unity Editor in Rider

Discussion in 'Code Editors & IDEs' started by JesseSTG, Jul 24, 2023.

  1. JesseSTG

    JesseSTG

    Joined:
    Jan 10, 2019
    Posts:
    236
    I'm trying to connect to the Unity Editor for debugging using Rider, but the connection keeps failing with this error:

    Screenshot 2023-07-24 164120.png

    "Unable to connect to Unity Editor. Please follow 'Debug in the Unity Editor' documentation."

    This occurs when I click the Debug icon in Rider, even if I explicitly select the Unity process.

    Here are some facts:
    • I am using Windows 10 Pro, version 22H2
    • I am using Rider 2023.1.4
    • I am using Unity 2023.1.5f1
    • I am using version 3.0.24 of the Rider integration package
    • Closing and re-opening Rider, Unity, Unity Hub, and JetBrains Toolbox did not help.
    • Deleting all generated .csproj and .sln files did not help.
    • The Unity Editor is set to compile C# code in Debug mode.
    • Normal Unity integration works as expected (e.g. I can view asset references just fine).
    • Rebooting my computer worked around the issue.
     
    Last edited: Jul 24, 2023
  2. fac7or

    fac7or

    Joined:
    Jul 6, 2019
    Posts:
    1
    I've encountered this issue sporadically using the combination of Unity 2022.3.4F1 and the editor plugin version 3.0.24. The first time it occurred, I managed to fix it with a computer restart; after that, nothing seemed to help until I upgraded my Unity application to 2022.3.5F1.