Hello, I am a new Moodle user. This is the background of the above error message:
* Win XP Prof / XAMPP 1.5.5 (MySQL + PHP + Apache combo).
* Moddle 1.7
* Book_16.zip installed under /mod Directory renamed to /book
* "Book" appears an an available activity.
* I was able to create a Book as part of a course.
* When I try to either edit (as a creator) or view (as a student) the Book I get the above error message.
Thoughts? Thanks.