Package AR template failed-Start AR session failed

Development Platform & Builds Mobile
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my device : Huawei P20 Pro （supprot AR）
I use 4.19 to package the ar template ,event it packaged success ,but ,in mobile ,i cant see the ar functions without black screen.
1.I have set the projetct settings,accept sdk License
2.i have already make android SDK,JDK,NDK, and so on
3.the project have already enable arcore plugin ,arkit plugin ,and support AR mode

When i tap the screen ar mode,it shows me only black screen and a information: Start AR session failed
is anyone here find the same problem?

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2

I too have the same issue, my phone is vivo v5. Black screen is the only thing that i could see after I install handheld AR template app