Some of the recently posted notebooks of presenters from the Wolfram Technology Conference
http://www.wolfram.com/events/technology-conference/2017/presentations
are of limited value because external files referenced in them are not included in the downloads.
For example:
Can these be made available?
The attendees did not get these notebooks, either. This is often the case where new functionality is being demonstrated that will not work with the current released version of Mathematica. This appears to be the case with these talks.
