For anyone that runs into this, you can click Open on the first error, then hold shift and select all the image files in your texture directory and click Open again instead of doing them one by one.
BrianMila
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution