@krisidious said:

I don't know why they chose to put plugins in a hidden system folder... but they did. Perhaps they created the installer and wanted to avert all of the problems with bad installations. I don't know what the reasoning was, but this is how it is in 2014 and 2015.
Maybe i should find an earlier version...

@tig said:

Have you installed any Plugins using the Preferences > Extensions > Install... button ?

What is the path to the 'Plugins' folder you are looking in ?
It is in the Users AppData path NOT with SketchUp.exe !

Use this entry in the Ruby Console to file the correct Plugins folder:
Sketchup.find_support_file('Plugins')

got to the ruby file ... but thats as far as I got....

when I open my sketchup 2014 folder from my C drive there is no plugin file there to import new plugins...

Where am i suposed to look??