Widget and MacBook Air

I’ve finished my first app for Android and I’m porting it on a MacBook Air.
It seems that I didn’t understand what means “Multiplatform” because my app on MacBook don’t work!
I supposed to do some adaptation but I get these errors:

Programma partito da '"/Applications/Corona-3664/Native/Corona/mac/bin/lua" -e "io.stdout:setvbuf('no')" "/var/folders/4w/hn6pxl5s20v31f0q2n9msjs40000gn/T/.rMRO6V"'.
Programma 'lua' partito da '/Users/ninovessella/Desktop/mn_apple' (pid: 508).
Sessione di debug iniziata da '/Users/ninovessella/Desktop/mn_apple/'.
Programma completato in 0.34 secondi (pid: 508).
main.lua:1: module 'widget' not found:
no field package.preload['widget']
no file './widget.lua'
no file '/usr/local/share/lua/5.1/widget.lua'
no file '/usr/local/share/lua/5.1/widget/init.lua'
no file '/usr/local/lib/lua/5.1/widget.lua'
no file '/usr/local/lib/lua/5.1/widget/init.lua'
no file './widget.lua'
no file './widget/init.lua'
no file './lua/widget.lua'
no file './lua/widget/init.lua'
no file '/Applications/ZeroBraneStudio.app/Contents/ZeroBraneStudio/lualibs/widget/widget.lua'
no file '/Applications/ZeroBraneStudio.app/Contents/ZeroBraneStudio/lualibs/widget.lua'
no file '/Applications/ZeroBraneStudio.app/Contents/ZeroBraneStudio/lualibs/widget/widget/init.lua'
no file '/Applications/ZeroBraneStudio.app/Contents/ZeroBraneStudio/lualibs/widget/init.lua'
no file './widget.so'
no file '/usr/local/lib/lua/5.1/widget.so'
no file '/usr/local/lib/lua/5.1/loadall.so'
no file '/Applications/ZeroBraneStudio.app/Contents/ZeroBraneStudio/bin/clibs/widget.dylib'
no file '/Applications/ZeroBraneStudio.app/Contents/ZeroBraneStudio/bin/clibs/libwidget.dylib'
    stack traceback:
[C]: in function 'require'
main.lua:1: in main chunk
    Sessione di debug completata (0 istruzioni tracciate).

It seems that I can’t use the Widget!

How can I fix this issue?

Thank you very much,