Doesn't work in image tracking

[chris312319]

Unity 2019.4.1f1
Build successfully
Can open camera on PC or safari
but no image tracking or identifying
Is there any way to check the image tracking work fine?

[rudneibass]

It happened to me.

1. Use a .png image,
2. Import the image in the "ARWT-master\Assets\Images" directory
3. In the image's advanced settings, select the Read/Write Enable option;
4. Choose a simple marker name so that the most recent marker generated is always at the beginning of alphabetical order