Unreal Error: cannot Open Include file: "PaperLayer.generated.h", but this one is existed in the Paper2D module

I tried to build a Tile map editor inside the Unreal Engine but when I tried to add a tile map component and compile ,this error is here: cannot Open include file: “PaperLayer.generated.h”,I tried to delete the .vs .etc folders and recompile but it still failed? Did Anyone have the same problem before!