This is a known and widely reported problem. Just ignore it as you should ignore all console output.
I am getting below error again and again when i tried to call
See this thread.
Share and Enjoy
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
let myEmail = "eskimo" + "1" + "@apple.com"
ps DTS is closed 21 Dec through 1 Jan.