The error setting.undeclared-default

user: the script can change it: the error says what happened in the experiment’s names, and what to write instead.

Where MIME gives it, with what its message says happened and what its action says to do ({…} is filled in from the experiment):

• in mime/build/_profile.py:

  • what happened: {…} is not given, and its entry ({…}) declares no role or default kind for it: its written default {…} was taken

  • what to do: declare the value with its source: exp.source({…}, reason="...") (or write it where the setting is written, with its reason), or declare the setting's role and default kind in the entry's setting_roles

Reading an error and reaching its full traceback: reading an error. Every code: the index.