The type initializer for 'Microsoft.EntityFrameworkCore.Query.QueryableMethods' threw an exception

Question

I've got one function app which throws following error when I run it with [email protected] start command.

func start

System.Private.CoreLib: Exception while executing function: Test. 
Microsoft.EntityFrameworkCore: The type initializer for 
'Microsoft.EntityFrameworkCore.Query.Internal.NavigationExpandingExpressionVisitor' 
threw an exception. Microsoft.EntityFrameworkCore: 
The type initializer for 
'Microsoft.EntityFrameworkCore.Query.QueryableMethods' threw an exception. 
System.Linq: Sequence contains more than one matching element.

Entrypoint

private readonly IRepository _repository;

[FunctionName("Test")]
        public async Task TestAsync(
            [ServiceBusTrigger(
                "%topic%",
                "%subscription%",
                Connection = "connectionString")]
            Message message)
    {
        var result = await _repository.ToListAsync();
    }

It works fine when function app is launched from Visual Studio.

I thought I could get rid of that by directly referencing Microsoft.EntityFrameworkCore in function app csproj.

Any ideas?

Thanks

FunctionApp.csproj

  <ItemGroup>
    <PackageReference Include="Microsoft.Azure.WebJobs.Extensions.ServiceBus" 
    Version="4.3.0" />
    <PackageReference Include="Microsoft.NET.Sdk.Functions" Version="3.0.13" />
    <PackageReference Include="Microsoft.Extensions.Http" Version="3.1.11" />
  </ItemGroup>
  <ItemGroup>
    <ProjectReference Include="..\FirstLib\FirstLib.csproj" />
  </ItemGroup>

FirstLib.csproj

  <ItemGroup>
    <ProjectReference Include="..\SecondLib\SecondLib.csproj" />
  </ItemGroup>

SecondLib.csproj

 <ItemGroup>
    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="3.1.8" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="3.1.8" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer.NetTopologySuite" Version="3.1.8" />
  </ItemGroup>

Visual Studio version

Microsoft Visual Studio Professional 2019
Version 16.10.4

Answer 1

The problem went away when I upgraded Microsoft.EntityFrameworkCore to 5.0.0 in SecondLib dependency.

<ItemGroup>
    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="5.0.0" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="5.0.0" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer.NetTopologySuite" Version="5.0.0" />
  </ItemGroup>

The TargetFramework wasn't touched

<TargetFramework>netcoreapp3.1</TargetFramework>
<AzureFunctionsVersion>v3</AzureFunctionsVersion>