@tig said:

Do you have permission to write files to the destination folder ?
Try your Desktop...
Is there any exportable geometry in the SKP you are trying to export... etc ?
Yes, yes, yes and yes all times But suddenly I found the solve. Don't sure what was an origin for the problem, so only describe result:

Rubi is not one of my multiple languages but throw the code I found that in some checks if any external/internal functions in module return nil, it exits without warnings. As last action I did is a file name pointing, I tried to set full file path manually in the input dialog field, e.g. "C:\Temp\1.kml", not only name as it show in system dialog itself ("1.kml"). And it worked! So as I can suppose, alone file name is used internally to be used with some standard prefix of directory different from one used in a real path, use din dialog.
Why? Windows 64b 7 Professional and Rubi pair knows only/ So export problems is solved. Let me check import ones in next time )

Thx for the wishes to help for this small problem!

Hi! I'm interesting in follow - how this scripts should/could work at all?

I installed it correctly (think so), restarted SketchUp, called menu of "KML Tools", pointed "Export KML file" item, spend some time to look at the modal dialog, at last clicked "Ok" button, created new export file name and what? Nothing occurs! No any file anywhere was created, no any messages typed, nothing. Module keeps silence )

I have last version of free license SketchUp downloaded yesterday.

Thx in advance.