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Postponed means that the issue was either a feature request or something that requires major refactoring on our side. Since that makes the issue not actionable in the close future we choose to close it as Postponed and add it on our internal roadmaps and technical debt pages instead.




Found in






Issue ID




IL2CPP Build freezes right after the splash screen when it was built using Visual Studio 2019 16.5.4



How to reproduce:
1. Open the attached project named "Case_1232157"
2. Open the Build Settings
3. Check if "OpenThis" Scene is included and build the project for Windows_64
4. Launch the Build

Expected result: The Build starts properly
Actual result: The Build freezes after the splash screen

Reproducible with: 2018.4.23f1, 2019.3.14f1, 2020.1.0b9, 2020.2.0a11

1. Testing was done using VS 2017 15.0.0 and VS 2019 16.5.4
2. VS 2017 was tested with 2019.3.7f1 and the build was ran successfully, whereas VS 2019 would freeze every time
3. Building the project with Mono works as expected

  1. Resolution Note:

    This is a bug with the Visual Studio 2019 compiler. We have submitted this bug report to Microsoft for the issue:

    To work around the issue, uninstall Visual Studio 2019 and use Visual Studio 2017.

Comments (1)

  1. guavaman

    May 07, 2020 19:03

    Just to add some information, this is caused by the Visual Studio 2019 16.5 update. Specifically, it is related to the new optimizer used in VS 2019. You can disable this new compiler and continue using VS 2019 by following the directions in this post:

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