Can't find c++ class in content

I create c++ class in ue,and build success in vs2019, but I can’t find it in content,even I create a blueprint class , it not exist. it has UCLASS and GENERATED_BODY, and when package project ,I can find it in outlog. Our project is build with UE installation package , and i develop it with compiler ue source . what shoud i do ?

Did you rebuild the project? (backup then delete Binaries, Build, Intermediate folders)