Hi all, I have tried to compile xwiki-platform with maven-2.1-SNAPSHOT. But faced difficulty compling xwiki-core and xwiki-patchservice. The error messages is as follow: [INFO] For artifact {com.xpn.xwiki.platform.tools:xwiki-verification-resources:null:jar}: The version cannot be empty. Thanks in adv, Colin ______________________________________________________________________ Search, browse and book your hotels and flights through Yahoo! Travel. http://sg.travel.yahoo.com