Invalid_response_exception: Scalar type expected instead of object, for fileurl

[RuudvanReenen]

An invalid_response_exception occurs when using Web Services with core_course_get_contents on a course that contains an activity with a Zip package. Using Moodle 4.0.12 with mod_tincanlaunch v1.63.

Invalid response value detected (fileurl => Invalid response value detected (Scalar type expected, array or object received.): Scalar type expected, array or object received.)

In lib.php, tincanlaunch_export_contents sets the fileurl to a moodle_url object instead of a string.