How build JBoss Developer Studio from source?
mvn clean install

<!-- for bootstrapping the parent and target-platform poms via Mead, we need to be able to fetch from this folder and run
    this profile (excluding all others); currently parent pom includes target-platform build too, so only need to build the parent
    mvn clean install -P parent,!libs,!tests,!jmx,!archives,!as,!common,!jst,!xulrunner,!vpe
    -P !jsf,!freemarker,!hibernatetools,!portlet,!struts,!cdi,!birt,!seam,!examples
    -P !maven,!ws,!gwt,!deltacloud,!runtime,!usage,!central,!aggregate-coverage
-->

Child module .parent..target-platform of .parentpom.xml does not exist