Latest Unity Demo Project 2.0.16 failed open camera on android


Recently, I download the latest astra unity sdk 2.0.16 from Developers - ORBBEC - 3D Vision for a 3D World,
but it results failed to open the astra pro camera when I build the apk and installed on android devices.
but the demo apk provided in the links up runs ok on it except low body FPS around 10.
I don’t know why.

Can anybody offer some help?

I am also trying Orbbec unity wrapper SDK and facing the same problem. When I used the demo apk provided, it worked. But when I built the app with the project the apk can’t access the camera. There is no pop up asking for camera permission. I tried to build it for android. Please anyone, help me!