Android non - asset files cannot be copied to mobile phones

I have the problem that when I pack the Android project and choose a non - Asset directory, when I install it to my cell phone, there is no Content folder in my storage UE4Game/MyProject/MyProject/, only one Saved. Why? How can I solve this problem? I am using the UNREALAR plug-in. There must be Content/ARToolKit/Data/camera_para.dat files on the phone to call the camera.