Hi @jsantana,
We’ve seen similar issues with this in the past when using the older .NET style projects.
Our general advice is to upgrade to using the newer SDK style projects for your csproj if you can.
My advice would be to create a new project using a newer .NET 6 template (since the NET4.X templates often still use the older style). Then replace the contents with this below. And copy your code files over to the new project.
You may need to re-import any other Nuget/package references manually.
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net48</TargetFramework>
<PlatformTarget>AnyCPU</PlatformTarget>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Speckle.Objects" Version="2.16.0" />
</ItemGroup>
</Project>
Any questions, don’t hesitate to ask