java - Anypoint Studio 5.1.1 with empty properties view -

i running new version of anypointstudio win 64bit-5.1.0-201503171252 on windows 8.1 java 8.

if click on element in flow, see only:

.

i check eclipse logfile (anypointstudio\workspace\.metadata\.log) , find error:

!entry org.eclipse.e4.ui.workbench 4 2 2015-04-09 19:42:58.236 !message problems occurred when invoking code plug-in: org.eclipse.e4.ui.workbench". !stack 0 java.lang.noclassdeffounderror: org/mule/tooling/apikit/common/metadata/resolver/apikitrouterinvokermetadataresolver$1$1 @ org.mule.tooling.apikit.common.metadata.resolver.apikitrouterinvokermetadataresolver$1.call(apikitrouterinvokermetadataresolver.java:65) @ org.mule.tooling.apikit.common.metadata.resolver.apikitrouterinvokermetadataresolver$1.call(apikitrouterinvokermetadataresolver.java:1) @ org.mule.tooling.utils.silentrunner.run(silentrunner.java:16) 

i try on different workstation same error. search missing class , found file in plugin folder:

anypointstudio-for-win-64bit-5.1.0-201503171252\anypointstudio\plugins\org.mule.tooling.apikit.common_1.6.1.201503121950\org\mule\tooling\apikit\common\metadata\resolver\apikitrouterinvokermetadataresolver$1$1.class 

have tried removing older apikit plugin , installing latest? conflict between different versions. hth, eva