Trouble with using a OpenCV4.5.0 c++ library in Unity on Android

Android/Java
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1

The development environment：
Windows10：19041
AndroidStudio： 4.1.3
AndroidSDK：Android11
NDK：22.0.7026061
OpenCV：4.5.0
Unity：2019.4.18f1c1
Description：
I built my AndroidStudio native c++ project and successfully acquired the .so files.But it Doesn’t work in App witch packaged in Unity.I also see other version OpenCV+Unity+Android example on Github.So i want to know is 4.5.0 version not support output as a .so files to used in Unity,or what I might be doing wrong.

Thanks for any advice you can give.