if a file is deleted "out from underneath you" as you are editing it, arcadia doesn't respond well about arcadia

[rdp]

Errno::ENOENT: No such file or directory - C:/downloads/devkit-3.4.5r3-20090411/bin/sh.bat
---< backtrace of Ruby side >-----
./ext/ae-editor/ae-editor.rb:2738:in `mtime'
./ext/ae-editor/ae-editor.rb:2738:in`check_file_last_access_time'
./ext/ae-editor/ae-editor.rb:1576:in `do_enter'
./ext/ae-editor/ae-editor.rb:1584:in`initialize_text_binding'
c:/ruby18/lib/ruby/site_ruby/1.8/tk/event.rb:443:in `call'
c:/ruby18/lib/ruby/site_ruby/1.8/tk/event.rb:443:in`eval_cmd'
c:/ruby18/lib/ruby/site_ruby/1.8/tk/event.rb:443:in `install_bind_for_event_class'
c:/ruby18/lib/ruby/site_ruby/1.8/tk.rb:1187:in`call'
c:/ruby18/lib/ruby/site_ruby/1.8/tk.rb:1187:in `eval_cmd'
c:/ruby18/lib/ruby/site_ruby/1.8/tk.rb:1187:in`cb_eval'
c:/ruby18/lib/ruby/site_ruby/1.8/tk.rb:1138:in `call'
c:/ruby18/lib/ruby/site_ruby/1.8/tk.rb:1324:in`callback'
c:/ruby18/lib/ruby/site_ruby/1.8/tk.rb:1323:in `catch'
c:/ruby18/lib/ruby/site_ruby/1.8/tk.rb:1323:in`callback'
c:/ruby18/lib/ruby/site_ruby/1.8/tk.rb:1354:in `mainloop'
c:/ruby18/lib/ruby/site_ruby/1.8/tk.rb:1557:in`mainloop'
./lib/a-tkcommons.rb:62:in `run'
c:/ruby18/lib/ruby/gems/1.8/gems/arcadia-0.7.0.1/bin/arcadia:12
c:/ruby18/bin/arcadia:19:in`load'
c:/ruby18/bin/arcadia:19
---< backtrace of Tk side >-------
    invoked from within
"rb_out c00643 11778 ?? ?? ?? NotifyAncestor 0 ?? 0x00080E4C ?? NotifyNormal ??
?? 8 181120062 ?? 773 454 ?? ?? ?? 0 ?? ?? ?? 0x00000000 0x00000000 7 ...."
    (command bound to event)

[angal]

fixed