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Bug Missing method on IL2CPP build

Discussion in '2021.2 Beta' started by Kunnogi, Jun 15, 2021.

  1. Kunnogi

    Kunnogi

    Joined:
    Apr 29, 2019
    Posts:
    12
    When using 2021.2.0a20 and building using IL2CPP, if you use interop services, at the time of its disposal it finds a missing method (that should be located at mscorlib?), using link.xml to bypass stripping dont helps and the problem persists. Can be easily reproducible by using mono sqlite and trying to close a connection.
    Code (CSharp):
    1. System.MissingMethodException: System.Runtime.InteropServices.Marshal::SetLastWin32Error(System.Int32)
    2.   at System.Runtime.InteropServices.CriticalHandle.Dispose (System.Boolean disposing) [0x00000] in <00000000000000000000000000000000>:0
    3.   at System.Runtime.InteropServices.SafeHandle.Dispose () [0x00000] in <00000000000000000000000000000000>:0
    4.   at Mono.Data.Sqlite.SQLite3.Close () [0x00000] in <00000000000000000000000000000000>:0
    5.   at Mono.Data.Sqlite.SQLite3.Dispose (System.Boolean bDisposing) [0x00000] in <00000000000000000000000000000000>:0
    6.   at Mono.Data.Sqlite.SqliteConnection.Dispose (System.Boolean disposing) [0x00000] in <00000000000000000000000000000000>:0
    7.   at System.ComponentModel.Component.Dispose () [0x00000] in <00000000000000000000000000000000>:0
     
  2. JoshPeterson

    JoshPeterson

    Unity Technologies

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  3. Kunnogi

    Kunnogi

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    Apr 29, 2019
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    I did send it, is there anyway i can make the method to work for now? Even if i do try catch (given its at close that the problem happens) i still cant use it (i was using 2020 LTS and it was working 100% fine), if i dispose any of the related stuff it gives error on the same place.
     
  4. JoshPeterson

    JoshPeterson

    Unity Technologies

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    I'm not sure, sorry. We will need to investigate the bug report to learn more.
     
  5. jirimotejlek

    jirimotejlek

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    Nov 8, 2016
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    The missing method on IL2CPP indeed seems to be the problem (still). Is there any update on this?
     
    Baydogan and vasildx like this.
  6. JoshPeterson

    JoshPeterson

    Unity Technologies

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    I don't recall what the bug report number was for this one, so I'm not sure, sorry!
     
  7. JoshPeterson

    JoshPeterson

    Unity Technologies

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    @LeonhardP Kindly pointed me to the bug report that was originally submitted for this issue. Unfortunately, our QA team could not reproduce it, so we did not take any action.

    @jirimotejlek If you have a Unity project that will reproduce this issue that you can submit via a bug report, please do so. We would love to investigate this issue. Thanks!

    https://unity3d.com/unity/qa/bug-reporting
     
  8. jirimotejlek

    jirimotejlek

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    Nov 8, 2016
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    After experimenting with this the whole day, I suspect that I (and potentially @Kunnogi) are not using the correct libsqlite3.so or Mono.Data.Sqlite.dll compatible with the current 2021.2.0f version and it's causing this problem. In my case, I can't open the connection to the database, receiving the same error as @Kunnogi - System.MissingMethodException: etc..) It worked correctly in 2021.1 as well as all 2020 versions.

    Which Mono.Data.Sqlite.dll and libsqlite3.so should be used? Is there any guidance regarding how to set this this up?
    It's not like SQLite is some obscure tool, it's the most widely used embedded database in the world. Yet, there is literally hundreds of different posts on unity.com forums as well as elsewhere from devs struggling to make it work in Unity3D.

    Can this be, for example, a package that the developer would install if they need sqlite support in their game?
     
  9. JoshPeterson

    JoshPeterson

    Unity Technologies

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    We don't have any documentation or guidance about the usage of SQLite from the Unity side. I think that Mono.Data.Sqlite.dll should work, but it is not something that we actively test with Unity either, so I can't say for sure.

    I suspect that would be possible. I'm not familiar with what C# bindings there are already for SQLite, but I see no reason why there could not be a Unity package which makes this work well.
     
  10. xAvatarchikx

    xAvatarchikx

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    Hi!Someone managed to solve this problem on version 2021.2 ?
     
    Baydogan likes this.
  11. RRvfx

    RRvfx

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    Jun 14, 2018
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    Hi all,

    any news?

    Thanks
     
    Baydogan likes this.
  12. xAvatarchikx

    xAvatarchikx

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    Aug 17, 2012
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    Hi! I have updated the unit to version 2021.2.4f1 and replaced Mono.Data.Sqlite.dll with sources
     

    Attached Files:

  13. RRvfx

    RRvfx

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  14. xAvatarchikx

    xAvatarchikx

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  15. TudorA

    TudorA

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    @xAvatarchikx Did you add them to the Plugins folder ? It seems I get some compilation problems.
     
  16. xAvatarchikx

    xAvatarchikx

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    you still need to create a file csc.rsp in the Assets folder
    and add a line to it
    -r:System.Transactions.dll
     
  17. TudorA

    TudorA

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    Jan 3, 2017
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    @xAvatarchikx Thank you for your response, the compilation errors are gone :).Somehow in my case the android build, still expects the dll when running on the phone.
     
  18. RRvfx

    RRvfx

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    Jun 14, 2018
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    Hi,

    @xAvatarchikx, I have added the sources you mentioned (in /Assets/Plugins/Mono.Data.Sqlite_2.0/), csc.rsp included in Assets. I have created an assembly definition with a name Mono.Data.Sqlite in the root folder of the sources.

    It compiles and build with no issues but at run-time I have got these errors:

    From Playing in Editor
    - EntryPointNotFoundException: sqlite3_libversion_number assembly:<unknown assembly> type:<unknown type> member:(null)

    From running on the mobile:

    - The type initializer for 'Mono.Data.Sqlite.UnsafeNativeMethods' threw an exception
    - Unable to load DLL 'Mono.Data.Sqlite.DLL'. Tried the load the following dynamic libraries: Unable to load dynamic library 'Mono.Data.Sqlite.DLL' because of 'Failed to open the requested dynamic library (0x06000000) dlerror() = dlopen failed: library "Mono.Data.Sqlite.DLL" not found (from running on the mobile)

    Am I missing something?
     
  19. RRvfx

    RRvfx

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    Btw, I am using unity 2021.2.5f1 ...
     
  20. RRvfx

    RRvfx

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    this seems the right choice:
    https://github.com/praeclarum/sqlite-net

    it seems working everywhere... tested quickly on editor, standalone and android (on mobile)...

    May someone confirm with my (quick) test? It would be really appreciated...

    Thanks
     
  21. Baydogan

    Baydogan

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    Mar 22, 2018
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    I am using unity 2021.2.6, and this bug still exists.

    Any Update on this Issue?
     
    Last edited: Dec 22, 2021
  22. Baydogan

    Baydogan

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  23. Baydogan

    Baydogan

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  24. Baydogan

    Baydogan

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  25. Baydogan

    Baydogan

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    I am using unity 2021.2.7, and this bug still exists.

    I have tried everything, even installing a virtual machine and clean install unity.

    Nothing worked.

    @JoshPeterson Please take another look at the submitted bug, or I can fill another bug report with an example project.
     
    pKallv and Directionality like this.
  26. Directionality

    Directionality

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    Jul 8, 2017
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    Hey Baydogan,

    I'm also using Mono.Data.Sqlite, and ran into the exact same issue trying to use it on Android after the engine upgrade. I found a workaround that's admittedly kinda hacky, but I'll share it so we have a way forward until this gets fixed :)

    After much digging, I was able to get things working again by adding a bogus definition for
    Marshal.SetLastWin32Error
    inside the IL2CPP files, rebooting, and deleting the Library/Temp folders and rebuilding. This was my first time digging into the IL2CPP internals, so I'm not totally sure which of the attached changes ended up patching things, but I ended up editing six files (the root folder is Unity/Hub/Editor/<version>/Editor/Data):

    • il2cpp/external/mono/mono/metadata/icall-def.h
    • il2cpp/external/mono/mono/metadata/marshal.c
    • il2cpp/external/mono/mono/metadata/marshal.h
    • il2cpp/libil2cpp/icalls/mscorlib/System.Runtime.InteropServices/Marshal.cpp
    • il2cpp/libil2cpp/icalls/mscorlib/System.Runtime.InteropServices/Marshal.h
    • il2cpp/libil2cpp/libil2cpp.icalls
    I'm attaching a patch file containing all the changes I made, along with the updated files. Like I said, this is a bit hacky and is meant to just be a temporary workaround, so hopefully we get an official resolution to this later!
     

    Attached Files:

    jacksonkr, wbourchier and Baydogan like this.
  27. Baydogan

    Baydogan

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  28. Baydogan

    Baydogan

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    @Directionality

    I am getting this error.

    Classes/Native/mscorlib17.cpp:21301:129: No member named 'SetLastWin32Error' in 'il2cpp::icalls::mscorlib::System::Runtime::InteropServices::Marshal'; did you mean 'GetLastWin32Error'?
     
  29. Directionality

    Directionality

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    @Baydogan
    You probably missed updating one of the files. If you like, DM me and we can look over your setup sometime. Also, make sure you delete Library/Temp before rebuilding!
     
  30. Baydogan

    Baydogan

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    Mar 22, 2018
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    Thank for the fast response, I am trying again.

    BTW my configuration is

    Apple Silicon M1 Max / Mac Os Monterey 12.0.1 / Unity 2021.2.7f1 Apple Silicon / API LEVEL .Net Framework

    I am building for iOs.
     
  31. Baydogan

    Baydogan

    Joined:
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    After investigating my iOs build problem with Directionality.

    I realized I also have to modify these files.

    /Applications/Unity/Hub/Editor/2021.2.7f1/PlaybackEngines/iOSSupport/il2cpp/libil2cpp/include/icalls/mscorlib/System.Runtime.InteropServices/Marshal.h
    /Applications/Unity/Hub/Editor/2021.2.7f1/PlaybackEngines/iOSSupport/il2cpp/libil2cpp/include/libil2cpp.icalls


    But my exported xcode project still does not build. Only fails with a different error.



    @Directionality Thanks for your help, you are great.
     
    Last edited: Dec 28, 2021
  32. Baydogan

    Baydogan

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    I have just downloaded the version 2022.1.0b2 and run "grep "SetLastWin32Error" -R ." for the root app folder.
    And I also did the same for version 2021.2.6f1.
    Then I have compared the results.

    There are three new files which contains the word "SetLastWin32Error". o_O





    ./Unity.app/Contents/il2cpp/external/mono/mono/metadata/icall-def.h
    :NOHANDLES(ICALL(MARSHAL_29a,"SetLastWin32Error",ves_icall_System_Runtime_InteropServices_Marshal_SetLastWin32Error))

    ./Unity.app/Contents/il2cpp/external/mono/mono/metadata/marshal.c
    :ves_icall_System_Runtime_InteropServices_Marshal_SetLastWin32Error (guint32 err)

    ./Unity.app/Contents/il2cpp/external/mono/mono/metadata/marshal.h
    :ves_icall_System_Runtime_InteropServices_Marshal_SetLastWin32Error (guint32 err);


     
  33. Directionality

    Directionality

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    So this might be fixed in the upcoming release? Wild.
     
  34. Baydogan

    Baydogan

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    I hope so.
     
  35. unity_56399AB65F28AE01D1DA

    unity_56399AB65F28AE01D1DA

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    Dec 18, 2021
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    Hi team,

    I have used SQLite for the functioning of a game made with Unity 2020.3.8f1. It worked fine in both: Windows and Android OS (IL2CPP and Mono build). However, I am getting the below issue when trying to run the same app on iOS platform. I believe I have set everything correctly for the app to work. Can you please go through the part of the log below and let me know how to have it fixed :

    MissingMethodException: System.Runtime.InteropServices.Marshal::SetLastWin32Error(System.Int32)

    at System.Runtime.InteropServices.CriticalHandle.Cleanup () [0x00000] in <00000000000000000000000000000000>:0

    at System.Runtime.InteropServices.CriticalHandle.Dispose (System.Boolean disposing) [0x00000] in <00000000000000000000000000000000>:0

    at System.Runtime.InteropServices.CriticalHandle.Dispose () [0x00000] in <00000000000000000000000000000000>:0

    at Mono.Data.Sqlite.SQLite3.Close () [0x00000] in <00000000000000000000000000000000>:0

    at Mono.Data.Sqlite.SqliteConnection.Close () [0x00000] in <00000000000000000000000000000000>:0

    at Mono.Data.Sqlite.SqliteConnection.Dispose (System.Boolean disposing) [0x00000] in <00000000000000000000000000000000>:0

    at System.ComponentModel.Component.Dispose () [0x00000] in <00000000000000000000000000000000>:0
     
  36. Directionality

    Directionality

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    It's the same issue we've been having where Marshal.SetLastWin32Error seems not to be defined in the IL2CPP files. @Baydogan did you get your iOS build up and running?
     
  37. Baydogan

    Baydogan

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  38. Baydogan

    Baydogan

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    @Directionality

    Finally I have found a workaround until unity fixes this bug.

    1. Don't modify any unity editor file. Just build for iOS as usual.
    3. Search for "// System.Void System.Runtime.InteropServices.CriticalHandle::Cleanup()" on xcode project.
    4. Move a few lines below and comment out the line that starts with : "Marshal_SetLastWin32Error_"
    5. DONE


    example:


    IL_002b:
    { il2cpp_codegen_runtime_class_init_inline(Marshal_tD976A56A90263C3CE2B780D4B1CADADE2E70B4A7_il2cpp_TypeInfo_var);
    // Marshal_SetLastWin32Error_mC871D8DAC36418FAA95AFD23CD2A3ECC94628D1C(G_B6_0, NULL); il2cpp_codegen_runtime_class_init_inline(GC_t920F9CF6EBB7C787E5010A4352E1B587F356DC58_il2cpp_TypeInfo_var);
    GC_SuppressFinalize_m3352E2F2119EB46913B51B7AAE2F217C63C35F2A(__this, NULL);
    return;
    }
    }
     
    pKallv likes this.
  39. unity_56399AB65F28AE01D1DA

    unity_56399AB65F28AE01D1DA

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    Hi, can you let me know in which file were you able to find such part of the code?
     
  40. Baydogan

    Baydogan

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    Mar 22, 2018
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    I have explained it step by step.

    Did you follow the steps?

    In my build the code that I commented out was inside a file named mscorlib17.cpp.
     
    Last edited: Jan 3, 2022
    pKallv likes this.
  41. unity_56399AB65F28AE01D1DA

    unity_56399AB65F28AE01D1DA

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    Yeah, figured it out later on. I was not able to find that line of code initially.

    You are a gem ! Thanks a lot for sharing the information on how to have that issue fixed. Game works as expected now on iPhone.

    I am very new to this system, I have worked on making apps for android but never for iOS, so xcode, provisioning profile etc were already completely new to me and after going through all of that it felt bad when the game did not function as expected on iPhone.
     
  42. Baydogan

    Baydogan

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    Glad it worked. This issue literally made me crazy.

    Also lack of response from unity people is heartbreaking :(
    I think it is because of the xmas and holidays.
     
    pKallv likes this.
  43. pKallv

    pKallv

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    You are my hero, a BIG thank you. I have been struggling with this for quite some time now.
     
    Baydogan likes this.
  44. Baydogan

    Baydogan

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    Mar 22, 2018
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    @pKallv My friend I know your pain :) Glad I helped. Have a nice day.
     
    pKallv likes this.
  45. pKallv

    pKallv

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    Just wondering is this a problem with uploading to Android as well?
     
  46. Baydogan

    Baydogan

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    @pKallv I think @Directionality encountered this problem while he was trying to build for android. So I guess this bug also affects android builds.
     
    pKallv likes this.
  47. Directionality

    Directionality

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    Nice find!
    Yeah, I'm not sure why the previous fix defining SetLastWin32Error worked for us in our Android build, but not iOS; removing the call from the CriticalHandle finalizer also seems like a fine workaround though.

    Of course it would be nifty to have the CriticalHandle finalizer work as expected by having that method resolvable at runtime, Unity :)
     
    Baydogan likes this.
  48. wbourchier

    wbourchier

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    Feb 4, 2018
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    This appears to still be a problem in 2021.2.8
     
  49. wbourchier

    wbourchier

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    Feb 4, 2018
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    Thanks very much @Directionality for taking the time to so clearly articulate a workaround, got me moving again.

    Can't find the issue in the unity issue tracker, there seem to be a lot of IL2CPP issues in 2021.2.X haha, does anyone have the link to the original issue so we can check if it's still active, although @JoshPeterson did imply they couldn't recreate it so closed it down.

    I have a super simple project that I can upload to bug reporting to get this back on Unity's radar if necessary.
     
    pKallv likes this.
  50. JoshPeterson

    JoshPeterson

    Unity Technologies

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    Yes, please submit a bug report for this issue, we would love to understand and correct it.