Unable to install oracle adf mobile extension in jdeveloper -

Unable to install oracle adf mobile extension in jdeveloper -

i have tried means install adf mobile extension maintain getting error:

jul 9, 2013 4:09:24 pm org.netbeans.core.startup.nbevents logged info: turning on modules: jul 9, 2013 4:09:24 pm org.netbeans.core.startup.nbevents dumpmoduleslist info: org.openide.util.lookup [8.3.1 201007282301] org.openide.util [8.6.2 201103231602] org.openide.modules [7.17.2 201008301741] org.openide.filesystems [7.38.2 201007282301] org.netbeans.bootstrap/1 [2.33.5 201104201301] org.netbeans.core.startup/1 [1.25.5 201103231602] org.netbeans.libs.osgi [1.1.1 201007282301] org.netbeans.core.netigso [1.4.5 201011191627] oracle.ide_osgi [11.1.2 11.1.2 org.netbeans.core.dynamicconfig [1.0 130507] org.apidesign.netbinox [1.16.10 110502] com.oracle.jdeveloper.nbbridge [1.1 130507] jul 9, 2013 4:09:24 pm oracle.ideimpl.webupdate.webupdateaddin loadhookclass severe: cannot load extension oracle.adf.mobile

oracle-adf-mobile