This is what I get when running dry release:prepare | [INFO] Scanning for projects... | [INFO] NOTE: Using release-pom: C:\projects\microcontainer\mdr\release-pom.xml in reactor build. | [INFO] ------------------------------------------------------------------------ | [INFO] Building JBoss MetaData Repository | [INFO] task-segment: [clean, verify] | [INFO] ------------------------------------------------------------------------ | [INFO] artifact org.apache.maven.plugins:maven-clean-plugin: checking for updates from repository.jboss.org | [INFO] artifact org.apache.maven.plugins:maven-clean-plugin: checking for updates from snapshots.jboss.org | [INFO] ------------------------------------------------------------------------ | [ERROR] BUILD ERROR | [INFO] ------------------------------------------------------------------------ | [INFO] Failed to resolve artifact. | | GroupId: org.apache.maven.plugins | ArtifactId: maven-assembly-plugin | Version: RELEASE | | Reason: Unable to determine the release version | | org.apache.maven.plugins:maven-assembly-plugin:pom:RELEASE | There is this line in release-pom.xml: | <artifactId>maven-assembly-plugin</artifactId> | <version>RELEASE</version> | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4142892#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...