I want to do a flutter-unity project using AR. When I made the unity AR project, this message showed up:
The Progressive CPU lightmapper is not supported on Apple silicon, switching to the Progressive GPU lightmapper.
I do not know what to do I have to do an AR project with unity.
If you're developing on an M1 Mac (which I assume you are since you're getting this message), and targeting an M1 Mac, then I don't think you have to do anything (but you can take @YudReish's suggestion to turn off the warning).
If you're not targeting an M1, then be sure to install the appropriate platform support. When you build the proper Lightmapper should be installed.