AppSelfHostBased in test project causes error

[Ben238]

Hi,

I encountered the same problem as

Error with AppSelfHostBase with .NET 5

I have an existing project, still referencing ServiceStack.Kestrel.Core v5.8.0, and Microsoft.AspNetCore.Server.Kestrel.Core v2.1.2, after installing .NET 5 I am getting the following Loader Exception when trrying to start an AppSelfHostBase: Could not load type ‘Microsoft.Extensions.Primitives.InplaceStringBuilder’ from assembly 'Microsoft.Extensions.Primitives, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60 I have tried uninstalling .NET 5 SDK but this issue remains, the a…

and can get it to work by changing skd to sdk.web

I have a test project where I create a AppSelfHostBased for integration test and since moving from netcore3.1 to net5 I get in the OneTimeSetUp

System.TypeLoadException : Could not load type ‘Microsoft.Extensions.Primitives.InplaceStringBuilder’ from assembly ‘Microsoft.Extensions.Primitives, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60’.

The template project for ServiceStack works so is there no other solution to change sdk to sdk.web?

[mythz]

You can try explicitly referencing the packages which has the missing types, e.g:

https://www.nuget.org/packages/Microsoft.Extensions.Primitives/

But you could forever be chasing transitive dependencies like this down, when your web integration tests could just be referencing <Project Sdk="Microsoft.NET.Sdk.Web">.

[Ben238]

Well I went down the rabbit hole and realised I had a bit more than my services interfaces in the corresponding project. I had a left-over client referencing the http.polly extension
When I relocated it in an adequate project, all things went back to normal and my test library is back to referencing just sdk.