No subscribers registered for event class com.onegravity.rteditor.media.choose.MediaEvent when picking an image

[alsiPanda]

To the best of my knowledge, I have followed the implementation steps faithfully. But when I try to select an image from my device, nothing happens, and the log says the following:
D/EventBus: No subscribers registered for event class com.onegravity.rteditor.media.choose.MediaEvent

D/EventBus: No subscribers registered for event class org.greenrobot.eventbus.NoSubscriberEvent

D/EventBus: No subscribers registered for event class com.onegravity.colorpicker.SetColorPickerListenerEvent

D/EventBus: No subscribers registered for event class org.greenrobot.eventbus.NoSubscriberEvent

For some reason it seems to work on the emulator, but not in an actual device.