svn problem in Lyx

[Sancar Adali]

I have a lyx document that I version-control using SVN. I have checked 
out this document outside LyX. When I try to check-in my changes, I get 
the following error message

Some problem occured while running the command:
'svn commit -m "test"'book_top.lyx'>
'C:/Users/Sancar/AppData/Local/Temp/lyx_tempdir.Hp2640/...."'
Does anyone have a suggestion?