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Fixed in 2020.3.46f1, 2021.3.20f1, 2022.1.23f1, 2022.2.0b15, 2023.1.0a14



Found in


Issue ID




[API Updater] ApiUpdater reaches a timeout while updating assemblies



Reproduction steps:
1. Open the attached "" project with the Library folder removed
2. Observe the Console

Expected result: No errors are logged
Actual result: An error is logged

Reproduced with: 2020.3.36f1, 2021.3.6f1, 2022.1.8f1, 2022.2.0a19, 2023.1.0a2

Reproduced on: Windows 11, macOS Monterey 12.0.1 (Intel)

Error in 2023.1:
Timeout while updating assemblies:Assets/Plugins/Editor/JetBrains.RiderFlow/JetBrains.RiderFlow.Repacked.dll (Output: C:\\Users\\chiur\\AppData\\Local\\Temp\\tmp579186d5.tmp)
UnityEditor.Scripting.APIUpdaterLogger:WriteErrorToConsole (string,object\[])
UnityEditorInternal.APIUpdating.APIUpdaterManager:LogTimeoutError (UnityEditorInternal.APIUpdating.AssemblyUpdaterUpdateTask\[])
UnityEditorInternal.APIUpdating.APIUpdaterManager:UpdateAssemblies ()
UnityEditorInternal.APIUpdating.APIUpdaterManager:ProcessImportedAssemblies (string\[])

Error in 2020.3:
Unable to update following assemblies:Assets/Plugins/Editor/JetBrains.RiderFlow/JetBrains.RiderFlow.Repacked.dll (Name = JetBrains.RiderFlow.Repacked, Error = 131) (Output: /var/folders/9t/1hxkxg2d4pq7ry8_h71j9dtc0000gp/T/tmp3e2ba287.tmp)
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.StackOverflowException: The requested operation caused a stack overflow.

  1. Resolution Note (fix version 2023.1.0a14):

    We have fixed the timeout error in 2023.1.0a14. However, macOS and Linux users might still experience the following error:

    Unable to update following assemblies:Assets/Plugins/Editor/JetBrains.RiderFlow/JetBrains.RiderFlow.Repacked.dll

    This exception happens due to another issue in one of the libraries (Mono.Cecil) used by AssemblyUpdater. We have verified that a newer version of that library resolves this problem.

  2. Resolution Note (fix version 2021.3.20f1):

    Fixed in 2021.3.20f1

  3. Resolution Note (fix version 2020.3.46f1):

    Fixed in 2020.3.46f1

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