After sketch did not upload through IDE I found the NyBoard Readme on OpenCAT, followed the steps and if I open Board manager now there is a Petoi NyBoard installed. If I go to Boards I can choose between Arduino and Nyboard and Nyboard has only one option. After selecting this option the above error persists.
I found a similar error in the forum but the lady who asked the question anly said ' now it works' at some point without it being clear what solved the issue.
Bought this 'pet' to interest my daughter in Stem but this is proving a hard sell. I am no pro but sofar managed to get other projects and cloned nano's etc. to work in less time.