unable to copy release folder to desktop using AppleScript

I tried this script to copy release folder of one of my Xcode projects to desktop:

tell application "Finder"
    set targetFolde开发者_开发百科r to folder "release" of folder "build" of folder "8_15pm" of folder "26th_March" of folder "XYZ" of startup disk
    set destinationFolder to folder "Desktop" of folder "miraaj" of folder "Users" of startup disk
    copy targetFolder to destinationFolder
end tell 

I was expecting that I will obtain a folder named as release on my desktop but I did not get any :(

Can anyone suggest me where I am wrong or some better way to do this??

Thanks,

Miraaj

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change copy to duplicate