Hi ChLoe: Thanks for your reply the suggestion about using DMX.
I've looked in the system console, and the Source Tools doesn't put its warnings/errors there. It displays them in a separate window.

I am trying to export a very complicated Blender model to SFM. When the export fails, the Source Tools display a detailed log of the warnings and errors that it encountered. I want to preserve this log, but it won't print and can't be saved. It disappears once the window closes. I looked in the Blender console, and it wasn't sent there.

How can I find this error log?