Hi users and devs I am using 64-bit machine, I wanted to build exclipse from source using maven , and *mvn clean* install command gives me this error : [ERROR] Failed to execute goal org.apache.maven.plugins:maven-dependency-plugin:2.2:copy (copy jar files of restlet, httpclient and xwiki-platform-rest-model) on project org.xwiki.eclipse.rest: Unable to find artifact. Failure to find org.xwiki.platform:xwiki-platform-rest-model:jar:3.1-SNAPSHOT in http://nexus.xwiki.org/nexus/content/groups/public-snapshots was cached in the local repository, resolution will not be reattempted until the update interval of xwiki-snapshots has elapsed or updates are forced .. ... [ERROR] org.xwiki.platform:xwiki-platform-rest-model:jar:3.1-SNAPSHOT On this http://maven.xwiki.org/snapshots/org/xwiki/platform/xwiki-platform-rest-mode... remote repository I count not find the requited version So I changed it to another version and it works , but when executing the xeclipse it gives me an error on GUI side (File Explorer panel ) java.lang.ArrayIndexOutOfBoundsException: 0 at org.xwiki.eclipse.ui.views.XWikiNavigator.createPartControl(XWikiNavigator.java:116) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.createPartControl(CompatibilityPart.java:138) at org.eclipse.ui.internal.e4.compatibility.CompatibilityView.createPartControl(CompatibilityView.java:155) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:313) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) Any one guide me to have a working version from source , please ? Cheers