AWS Lambda - Unable to load library

[boemekeld]

Reproduction steps

dotnet tool install -g Amazon.Lambda.Tools
dotnet new --install Amazon.Lambda.Templates
dotnet new lambda.EmptyFunction --name LambdaGit
cd LambdaGit/src/LambdaGit
dotnet add package LibGit2Sharp --version 0.27.0-preview-0034
--- add "new LibGit2Sharp.Repository();" in "FunctionHandler" function in "Function.cs"
dotnet lambda deploy-function LambdaGit --function-role LambdaGitRole
dotnet lambda invoke-function LambdaGit --payload "LambdaOK"

Actual behavior

Payload:
{
"errorType": "TypeInitializationException",
"errorMessage": "The type initializer for 'LibGit2Sharp.Core.NativeMethods' threw an exception.",
"stackTrace": [
"at LibGit2Sharp.Core.NativeMethods.git_repository_new(git_repository*& repo)",
"at LibGit2Sharp.Core.Proxy.git_repository_new()",
"at LibGit2Sharp.Repository..ctor(String path, RepositoryOptions options, RepositoryRequiredParameter requiredParameter)",
"at lambda_method(Closure , Stream , Stream , LambdaContextInternal )"
],
"cause": {
"errorType": "DllNotFoundException",
"errorMessage": "Unable to load shared library 'git2-ef5a385' or one of its dependencies. In order to help diagnose loading problems, consider setting the LD_DEBUG environment variable: libgit2-ef5a385: cannot open shared object file: No such file or directory",
"stackTrace": [
"at LibGit2Sharp.Core.NativeMethods.git_libgit2_init()",
"at LibGit2Sharp.Core.NativeMethods.InitializeNativeLibrary()",
"at LibGit2Sharp.Core.NativeMethods..cctor()"
]
}
}

Log Tail:
START RequestId: 0e940c07-4526-411d-9f47-ffbfc2cd3a73 Version: $LATEST
The type initializer for 'LibGit2Sharp.Core.NativeMethods' threw an exception.: TypeInitializationException
at LibGit2Sharp.Core.NativeMethods.git_repository_new(git_repository*& repo)
at LibGit2Sharp.Core.Proxy.git_repository_new()
at LibGit2Sharp.Repository..ctor(String path, RepositoryOptions options, RepositoryRequiredParameter requiredParameter)
at lambda_method(Closure , Stream , Stream , LambdaContextInternal )

at LibGit2Sharp.Core.NativeMethods.git_libgit2_init()
at LibGit2Sharp.Core.NativeMethods.InitializeNativeLibrary()
at LibGit2Sharp.Core.NativeMethods..cctor()

END RequestId: 0e940c07-4526-411d-9f47-ffbfc2cd3a73
REPORT RequestId: 0e940c07-4526-411d-9f47-ffbfc2cd3a73 Duration: 702.47 ms Billed Duration: 800 ms Memory Size: 256 MB Max Memory Used: 69 MB Init Duration: 156.11 ms

Version of LibGit2Sharp (release number or SHA1)

I tested all 84 available versions of GitLib2Sharp on Nuget. None of them worked.

Operating system(s) tested; .NET runtime tested

Amazon Linux 2
.NET Platform: 3.1

I analyzed several related issues in the GitLib2Sharp, aws-lambda-dotnet and Docker repositories but I was unable to solve this problem.

Please help me.

[boemekeld]

I found a workaround:
The rhel-x64 runtime version of libgit2-ef5a385.so works on Amazon Linux 2.

[Wolftousen]

Thanks for this. Our build agent wasn't dropping the SO in at all, so i just ran publish locally grabbed the appropriate one and added it as an include on the csproj