When attempting to add a custom error message to a command object (non-domain object), I was trying to do this in the following way:
commandObject.errors.reject(null, "Some error msg")
However, when I go to execute the application, I received the following error:
No such property: errorsIt turns out, that the errors property of a command object is not always created.
To have grails automatically create the errors object, the command objects must be annotated as "@Validateable"
and in the Config.groovy file add the following line: