You have to override
see https://caliburnmicro.codeplex.com/discussions/348490
But this has nothing to do with changes in CM 2.0, you have to do the same in CM 1.5 for this to work.
SelectAssemblies() and update the naming conventions so CM will find the view-model.see https://caliburnmicro.codeplex.com/discussions/348490
But this has nothing to do with changes in CM 2.0, you have to do the same in CM 1.5 for this to work.