[NativeAOT] LINK : fatal error LNK1123

[dellamonica]

I'm getting the following error when trying to compile a project with the NativeAOT compiler.

• This project used to compile normally before, and there doesn't seem to be any significant difference in the code.
• I have installed VS 2022 preview and uninstalled 2019 - it might have something to do with the problem.

CVTRES : fatal error CVT1103: cannot read file [........csproj]
LINK : fatal error LNK1123: failure during conversion to COFF: file invalid or corrupt [.......csproj]
....\.nuget\packages\microsoft.dotnet.ilcompiler\6.0.0-rc.1.21420.1\build\Microsoft.NETCore.Native.targets(352,5): error MSB3073: The command "link  @"obj\x64\Release\net6.0\win-x64\native\link.rsp"" exited with code 1123. [..........csproj]

Any suggestions?

[jkotas]

Are you able to build hello world sample on your machine? https://github.com/dotnet/runtimelab/tree/feature/NativeAOT/samples/HelloWorld

[dellamonica]

I'll be able to test it out Monday morning and will let you know. Thanks!

…

On Fri, Aug 20, 2021, 16:11 Jan Kotas ***@***.***> wrote: Are you able to build hello world sample on your machine? https://github.com/dotnet/runtimelab/tree/feature/NativeAOT/samples/HelloWorld — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1436 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABR6M6WI5APAVETJB5X23HLT52SF7ANCNFSM5CQSZNDQ> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&utm_campaign=notification-email> .

[dellamonica]

@jkotas, "Hello World" worked.
Interestingly I could compile my code on linux (however, I had to install additional packages following some older comment of yours dotnet/corert#5742 (comment)).

[jkotas]

Do you see obj\Release\net5.0\win-x64\native\<your app name>.res file in your directory? There is something wrong with this file. Would you mind to share it here or over email? Also, it would help if you can share obj\Release\net5.0\win-x64\<your app name>.dll that this file is generate from.

If you would like to debug it yourself, I think that there is a problem DumpNativeResources task (https://github.com/dotnet/runtimelab/blob/feature/NativeAOT/src/coreclr/tools/aot/ILCompiler.Build.Tasks/DumpNativeResources.cs , called from https://github.com/dotnet/runtimelab/blob/feature/NativeAOT/src/coreclr/nativeaot/BuildIntegration/Microsoft.NETCore.Native.targets#L307 ). The task is probably generating a resource file that the VS2022 linker fails to parse for some reason.

[dellamonica]

Your question prompted me to look into the obj path and after not finding any .res file there I decided to delete everything in obj and bin and re-run the dotnet publish command. It worked! So I must assume that there was some garbage in there that confused the linker. Is there an ILC option to do a clean build every time?

It's still not clear why the garbage/bad files (if it was in fact that) were generated and if has to do with VS2022 replacing 2019. It could be some inconsistency between a previous run using the 2019 toolchain and a later run of the publish command with the 2022 tooling. It might not be worthy to investigate it further though. Thanks for your help.

(BTW, I had run Clean Solution from VS2022 before filing this issue, so I did not expect the obj/ bin/ folders to have any corruption.)

[jkotas]

Is there an ILC option to do a clean build every time?

There is not one. It is a general .NET SDK problem, not specific for ILC. It is a good idea to delete obj and bin directories after major toolset update.

[kant2002]

@dellamonica anything actionable left on your issue here? It seems to be it can be closed.

[dellamonica]

Nothing I can think of. Thanks

…

On Wed, Sep 8, 2021, 03:27 Andrii Kurdiumov ***@***.***> wrote: @dellamonica <https://github.com/dellamonica> anything actionable left on your issue here? It seems to be it can be closed. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#1436 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABR6M6XHEQ6IVCSQ2VNQLZDUA366NANCNFSM5CQSZNDQ> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

[ductai230894]

I have some problem, I clear all in obj folder of project ,It working fine again

[VAllens]

I have some problem, I clear all in obj folder of project ,It working fine again

Me too...
I encountered this problem during Gitlab CI running.

.NET SDK 7.0.103

[dooann]

I have some problem, I clear all in obj folder of project ,It working fine again

You saved my day :)