Some problems were encountered while building the effective model for org.jboss:User-Guide-en:jdocbook:1.3.1.Alpha3-SNAPSHOT

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[WARNING] Some problems were encountered while building the effective model for org.jboss:User-Guide-en:jdocbook:1.3.1.Alpha3-SNAPSHOT
[WARNING] 'artifactId' contains an expression but should be a constant. @ org.jboss:User-Guide-${translation}:1.3.1.Alpha3-SNAPSHOT, /home/rhusar/git/mod_cluster/docs/userguide/pom.xml, line 31, column 17
[WARNING] 'parent.relativePath' points at org.jboss.mod_cluster:org.jboss.mod_cluster-docs instead of org.jboss:jboss-parent, please verify your project structure @ org.jboss:User-Guide-${translation}:1.3.1.Alpha3-SNAPSHOT, /home/rhusar/git/mod_cluster/docs/userguide/pom.xml, line 24, column 13
[WARNING]
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
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[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
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