Forum: FXRuby error in require 'parseexcel'

When require 'parseexcel' used in the 'fox16', I double click the .rbw
file, it cannot work. But when i perform in the source code, it can
work.

How to solve the 'parseexcel' and 'fox16'?

Probably the application need to write to some 'STDOUT'. In .rbw files 
if the applications tries to write to the default STDOUT(the prompt) it 
trigger an error. Try changing the file to .rb and see what happen.