[wxruby-users] Error: undefined method 'calc_min' for #<Wx::UpdateUIEvent:0

[Zhimin Zhan]

My application has been running fine for weeks, just today got this
error twice:

Error: undefined method 'calc_min' for #<Wx::UpdateUIEvent:0xb18f9c4>

OS: WXMSW
Ruby Version: 1.8.6
Backtrace:
  E:/work/iTest2/app/main.rb:180:in `calc_min'
  E:/work/iTest2/app/main.rb:180:in `layout'
  E:/work/iTest2/app/main.rb:180:in `process_event'
  E:/work/iTest2/app/main.rb:180:in `main_loop'

The line 180 is
    app.main_loop

Env: Win XP, wxRuby 1.9.8 mswin32

Regards,
Zhimin
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