Are there version bug like domain model dont have file entity in studio pro 8.14.1

I want to complete the upload and download file function ,but find some problem: Are there  version bug like domain model don't have file entity in studio pro 8.14.,, but in the  Web studio, there don’t have problem . 
1 answers

To create a file entity in Studio Pro

  • open the domain model in one of your modules
  • create a new entity
  • make this entity a specialization of System.FileDoc
  • set permissions on your new entity
  • add attributes if you need them

When you are creating your new entity, this is where you make it a specialization:

Hope that helps.