转载地址：https://code.google.com/p/veloeclipse/issues/detail?id=47
I tried to install veloeclipse 2.0.8 in eclipse luna via the update site but kept getting a "Failed to prepare partial IU: [R]com.googlecode.veloeclipse.ui 2.0.8" error right at the end. In the .log file I found the following: !ENTRY org.eclipse.equinox.p2.publisher.eclipse 4 0 2014-06-27 10:46:37.072 !MESSAGE Unable to acquire PluginConverter service during generation for: F:eclipsepluginscom.googlecode.veloeclipse.ui_2.0.8. !ENTRY org.eclipse.equinox.p2.touchpoint.eclipse 4 0 2014-06-27 10:46:37.072 !MESSAGE The bundle manifest could not be read: F:eclipsepluginscom.googlecode.veloeclipse.ui_2.0.8 !ENTRY org.eclipse.equinox.p2.engine 4 4 2014-06-27 10:46:37.075 !MESSAGE An error occurred while installing the items !SUBENTRY 1 org.eclipse.equinox.p2.engine 4 0 2014-06-27 10:46:37.075 !MESSAGE session context was:(profile=epp.package.jee, phase=org.eclipse.equinox.internal.p2.engine.phases.Install, operand=null --> [R]com.googlecode.veloeclipse.ui 2.0.8, action=). !SUBENTRY 1 org.eclipse.equinox.p2.touchpoint.eclipse 4 0 2014-06-27 10:46:37.075 !MESSAGE Failed to prepare partial IU: [R]com.googlecode.veloeclipse.ui 2.0.8. This led me to https://bugs.eclipse.org/bugs/show_bug.cgi?id=421979 where someone suggested installing a compatibility plugin. So, go to Help -> Install New Software..., choose "The Eclipse Project Updates - http://download.eclipse.org/eclipse/updates/4.4" from the "Work with" list and then in the "Eclipse Tests, Examples, and Extras" category check "Eclipse 2.0 Style Plugin Support" and install it. After restarting Eclipse, install veloeclipse again and this time the installation will succeed.