NotImplementedError when placing a substituion in a todo.
When I place a substitution in a todo item, I get a NotImplementedError.
.. todo: Comment on how much I like to use |appname|.
Raises this error, with this added to the log:
NotImplementedError: visiting unimplemented node type: substitution_reference
When this oocurs, it is often not immediately clear where the error is in the source file.
- Implement the substitution in the todo extension
- Point out where the error is in the make output