Th problem comes with the fact that you are trying to get a

Bus<in T>

, and not a

Bus<in ExecutorTest.TestTaskContext>

. In essence,

T

is not reified. I understand why you are doing this but, unfortunately, there's no easy way to do this in Kodein... properly. A "simple" hack would be to bind and retrieve

Bus<*>

, then cast it to

Bus<in T>

.