When pasting this YAML file into an online yaml parser, I got an expected block end error:
ADDATTEMPTING: \'Tentative d ajout \' ATTEMPTINGTOGIVE: \'Tenter de do
This error also occurs if you use four-space instead of two-space indentation.
e.g., the following would throw the error:
fields: - metadata: {} name: colName nullable: true
whereas changing indentation to two-spaces would fix it: