gradle plugin = 3.x, current is 3.1.3, can not let Dagger1 and Dagger2 to living Together.

Hi Cejas,

I am try to let Dagger1 and Dagger2 to living Together.

After studying the post https://fernandocejas.com/2016/08/03/android-dagger-1-and-2-living-together/
I forked your project "https://github.com/android10/two-daggers" , And I am trying to use it in my project using grade plugin is 3.x.

Project after forked: https://github.com/YingVickyCao/two-daggers
But, It happened some trouble

- When gradle plugin = 2.1.0, shadow works well.
branch = gradle_2.1.0

- When gradle plugin = 3.x, current is 3.1.3, shadow does not work. Module **wo-daggers-compiler** and **two-daggers-library** built jar is empty.
branc = gradle_3.1.3

I try to find out the reason, but failed.
I also sent the asking help to your email.
Could you please give me a hand , or give me some tips?

Thank U very much.

References:
https://stackoverflow.com/questions/52306269/fail-use-shadow-to-live-dagger-1-and-2-together-in-android-when-gradle-pl