how to solve unable to read respository at...

[57842312]

I have the similar problem when I want to install svn support ,Here it is

Unable to read repository at http:// downloads.zend. com/studio-eclipse/updates-extra/9_0.
http:// downloads.zend. com/studio-eclipse/updates-extra/9_0 is not a valid repository location.

anyone can help me? thx