I have a fairly large number of JS and CSS files to include by hand in Resources. Several times now I have started typing the path for a file, but I often forget the complete file path. For example, I tend to forget if the path is resources/to/theme/file.css or resources/to/themes. I often switch (using alt+tab) to another program where I can find the full path to the new file. When I switch, the path entered in the url field (of the resource I'm creating) is incomplete. In my case, it is often part of the relative path with no file (yet). When I do this, it appears like Architect is attempting to read the file, then it throws an exception notice and crashes.
Steps to reproduce the problem:
Add a new CSS or JS Resource
Start typing a path in the URL field but don't complete it.