i want install svn plugin with eclipse. and i found this site for instruction
http://www.eclipse.org/subversive/documentation/gettingStarted/aboutSubversive/install.php
and i give following download link on my "Help-- Install New Software" option
http://download.eclipse.org/technology/subversive/1.0/update-site-1.0.1/
but when i try to download the plugin eclipse give me following error

i dont why ?