Build fails on assembling

[rkfg]

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-assembly-plugin:2.4.1:assembly (default-cli) on project mage-client: Assembly is incorrectly configured: null: Assembly is incorrectly configured: null:
[ERROR] Assembly: null is not configured correctly: Assembly ID must be present and non-empty.

Adding any id (for example, <id>mage</id>) to src/main/assembly/distribution.xml (for both Mage.Client and Mage.Server) fixes this. It somehow worked for me before but today I can't build a complete Mage package because of this.

[rkfg]

Ok, at home it builds fine without any changes because the maven-assembly-plugin is of version 2.2-beta-5. At work it's 2.4.1 and it doesn't support assemblies without id. pom.xml doesn't force any version hence causing such problems.