As far as i understand - It will fail because the addons are also available in our private repository. So if you are a magnolian you will get the addons.

For the rest of the world - i guess we should add a reference to the vaaadin repository to the project pom:

<repository>
<id>vaadin-addons</id>
<url>http://maven.vaadin.com/vaadin-addons</url>
</repository>

'Cause building magnolia is complicated enough without getting errors that are not covered in our documentation.

Caused someone a problem:
http://forum.magnolia-cms.com/forum/thread.html?threadId=ad50cd88-7c65-478c-a7e2-31a948281173