Error creating plugin - "Expected only 1 value but found more than 1"

GPT builders Plugins / Actions builders
1

When I was trying to install a plugin which I was developing, I got this error message: “Couldn’t find manifest”.
The console showed these two error messages:

  • POST …chat.openai.com/backend-api/aip/p 412 (Precondition Failed)
  • API error …chat.openai.com/backend-api/aip/p Error creating plugin: {“message”:“Expected only 1 value but found more than 1”}

When I first opened chatGPT, I got this error message:

  • GET …chat.openai.com/backend-api/accounts/b8bb0bdc-50a1-4d61-94b4-9da47cb187f6/settings 401 (Unauthorized)

Any hint about those error messages?