"Pretrained network G0 has fewer layers..."

I trained the face model according to the instructions and tested it. 
The output shows：
Pretrained network G0 has fewer layers; The following are not initialized:
 ['model_down_img', 'model_down_seg', 'model_final_flow', 'model_final_img', 'model_final_w', 'model_res_ flow', 'model_res_img', 'model_up_flow', 'model_up_img']

How can I solve it？