This question already has an answer here:
I posted this question on Stack Overflow, and noticed the following behavior. The following quote does somehow cut the rest of the sentence:
'DoSomeList' cannot be used as type parameter 'TImplementation' in the generic type or method 'ServiceCollectionServiceExtensions.AddTransient(IServiceCollection)'. There is no implicit reference conversion from 'DoSomeList' to 'IDo>'.
'IDo>' should be
IDo<System.Collections.Generic.List<SomeType>>. Check it out in the edit view.