Cause
This error occurs if you specify an option that is not valid for the element that you are defining.
When you define types, methods, and certain other elements in a JADE schema file or method, the definition can be followed by a list of options. These options are in the form of a list of modifiers separated by commas, and they specify additional attributes of the item being defined. Examples include the
This error can also result from a misplaced identifier or some other syntactic error, causing the compiler to interpret an identifier as an option when an option was not intended.
Action
Change the invalid option, or correct the method syntax if this is the cause of the error.