zend studio 的svn插件安装不了怎么办？

Question

An error occurred while collecting items to be installed
session context was:(profile=DefaultProfile, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
Problems downloading artifact: org.eclipse.update.feature,org.polarion.eclipse.team.svn.connector.svnkit18,4.1.0.I20140907-1700.
MD5 hash is not as expected. Expected: d885dda88e13388a446c93051ab58477 and found ff64d3fa6de3e1afc61f2edd999393ea.