eclipse - Cannot Install ECF SDK due to missing bundle? -

eclipse - Cannot Install ECF SDK due to missing bundle? -

i wanted utilize docshare eclipse downloaded zip file installing ecf sdk eclipse site , went install new software in eclipse gave path of zip file , deselected "contact sites during....required software" checkbox beacuse took long. result error stating:

cannot finish install because 1 or more required items not found. software beingness installed: ecf sdk eclipse 3.9.0.v20140818-1747 (org.eclipse.ecf.core.feature.group 3.9.0.v20140818-1747) missing requirement: ecf discovery ui 3.0.0.v20140818-1747 (org.eclipse.ecf.discovery.ui 3.0.0.v20140818-1747) requires 'bundle org.eclipse.emf.edit.ui [2.2.0,3.0.0)' not found cannot satisfy dependency: from: ecf sdk eclipse 3.9.0.v20140818-1747 (org.eclipse.ecf.core.feature.group 3.9.0.v20140818-1747) to: org.eclipse.ecf.discovery.ui [3.0.0.v20140818-1747]

i have no thought means , couldn't find solutions it. can please help me? thanks

the site downloaded zip file: http://www.eclipse.org/ecf/downloads.php

eclipse discovery eclipse-ecf