how debug build error?

[kyungyoonseo]

Hi i am trying to build display-builder product.

when i build my product it occur errors .
i already built cs-stucio applications, core, diirt, maven-osgi-bundle, display-builder and finally on my product

[ERROR] Cannot resolve project dependencies:
[ERROR] Software being installed: sky.display.builder 1.0.0
[ERROR] Missing requirement: sky.display.builder 1.0.0 requires 'bundle org.csstudio.display.builder.model 0.0.0' but it could not be found
[ERROR]
[ERROR] See http://wiki.eclipse.org/Tycho/Dependency_Resolution_Troubleshooting for help.
[ERROR] Cannot resolve dependencies of MavenProject: sky.xface.display.builder:1.0.0 @ /home/sky/build/css.product/plugins/sky.display.builder/pom.xml: See log for details -> [Help 1]

how can i fix this error?
I used snapshots for all sources except my products