Do you have the <extensions> element in one of your elements regarding the car-maven-plugin?
<plugin> <groupId>org.apache.geronimo.buildsupport</groupId> <artifactId>car-maven-plugin</artifactId> <version>${project.version}</version> <extensions>true</extensions> </plugin> is in the root pluginManagement geronimo pom. david jencks On Nov 20, 2012, at 9:47 AM, Marcos Mendez wrote: > Hi David, > > I'm trying to build a plugin myself , not building geronimo. :) Just a > separate car plugin so I can deploy my stuff with one file. > > Regards, > Marcos > > On Nov 20, 2012, at 12:45 PM, David Jencks wrote: > >> Is this trying to build geronimo itself? If so you need to do a bootstrap >> build first, IIRC >> >> mvn clean install -Pstage-bootstrap >> >> If you are trying to build your own .car file you need to mention the >> car-maven-plugin as an extension IIRC >> >> david jencks >> >> On Nov 20, 2012, at 7:50 AM, Marcos Mendez wrote: >> >>> >>> Does anyone know how to solve the "Unknown packaging: car" error using this >>> plugin with maven3? >> >