I understand the company's focus is now on IRIS, but as an Ensemble/Healthshare developer I am very disappointed in the decision to no longer extend functionality with Atelier. Please reconsider.

Well, I figured this out on my own. I created the project pointing to the wrong server, and brought in the code from the correct server. D'oh.

Thanks for this. Although I would still like to know how to exclude certain resources from validation, I was able to use filtering to at least eliminate the biggest offender ("Parser failure: \xHH is not yet implemented in string literals").