[xwiki-users] WritingComponents, First Try

Hi, I experiment http://platform.xwiki.org/xwiki/bin/view/DevGuide/WritingComponents I'm at "The component explained". I try "mvn install" (which is not in the tutorial, I'm crazy). I get that : Missing: ---------- 1) org.xwiki.platform:xwiki-core-component:jar:1.5-SNAPSHOT Try downloading the file manually from the project website. ... and etc. Here is pom.xml with the snapshot : <properties> <!-- TODO: remove this if you inherit a project that has the core version set --> <platform.core.version>1.5-SNAPSHOT</platform.core.version> </properties> <dependencies> <dependency> <groupId>org.xwiki.platform</groupId> <artifactId>xwiki-core-component</artifactId> <version>${platform.core.version}</version> </dependency> <dependency> <groupId>junit</groupId> As I understand things, I don't inherit a project, so I suppose it's the automatic settings of platform.core.version which is false. What is the good one ? Thanks.