title: Unable to resolve service for type 'System.String' while attempting to activate 'MyService'
body: <p>I'm seeing the following exception in my Service Fabric Stateless ASP.NET Core app.</p>
  
  <pre><code>System.InvalidOperationException: Unable to resolve service for type 'System.String' while attempting to activate 'MyService'.
     at Microsoft.Extensions.DependencyInjection.ServiceLookup.Service.PopulateCallSites(ServiceProvider provider, ISet`1 callSiteChain, ParameterInfo[] parameters, Boolean throwIfCallSiteNotFound)
     at Microsoft.Extensions.DependencyInjection.ServiceLookup.Service.CreateCallSite(ServiceProvider provider, ISet`1 callSiteChain)
     at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetResolveCallSite(IService service, ISet`1 callSiteChain)
     at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetServiceCallSite(Type serviceType, ISet`1 callSiteChain)
  </code></pre>
  
  <p>How can it not be able to resolve <code>System.String</code>?  How do I debug this further?</p>