Error when im closing the editor

[thegreek]

Hi there,
i try to edit the LGTS scenery from GAP,its for fs9 but it's working in fsx fine. when i do my editings and closing the editor pressing the Z button there comes a massage,that there is an error, the "unknown" scenery doesnt found and it cant save the changes!
what can i do to fix this,because if i dont edit the scenery,my aircraft is crossing the stairs or other vehicles!

Please help!

Thank you!!!

[virtuali]

It the AFCADs is still in FS9 format, it's not supported, you should probably have to open it with ADE or AFX and save it in FSX format.