Custom integration not working

Since version 0.93 My custom integration is not working.
Component redesigned for new folder architecture

41

  - platform: mpchc1
    host: http://192.168.7.178
    name: right_room
    port: 1234

configuration check fails:
Platform not found: media_player.mpchc1

What is in your manifest.json? I’ve found that I’ve gotten similar errors when the domain didn’t match the integration name.

{
  "domain": "mpchc1",
  "name": "Mpchc1",
  "documentation": "https://www.home-assistant.io/components/mpchc",
  "requirements": [],
  "dependencies": [],
  "codeowners": []
}