[wtp-releng] build cpp package failure

[xaioduanl <duanlilinux@xxxxxxx>]

I build the package cpp, but it failed.it says

[ERROR] Cannot resolve project dependencies:
[ERROR]   Software being installed: org.eclipse.cdt.repo raw:8.2.0.'SNAPSHOT'/format(n[.n=0;[.n=0;[-S]]]):8.2.0-SNAPSHOT
[ERROR]   Missing requirement: org.eclipse.cdt.repo raw:8.2.0.'SNAPSHOT'/format(n[.n=0;[.n=0;[-S]]]):8.2.0-SNAPSHOT requires 'org.eclipse.equinox.p2.iu; org.eclipse.cdt.build.crossgcc.feature.group 0.0.0' but it could not be found
[ERROR]
[ERROR] See https://wiki.eclipse.org/Tycho/Dependency_Resolution_Troubleshooting for help.
[ERROR] Cannot resolve dependencies of MavenProject: org.eclipse.cdt:org.eclipse.cdt.repo:8.2.0-SNAPSHOT @ /home/duanli/cpp/org.eclipse.cdt/releng/org.eclipse.cdt.repo/pom.xml: See log for details -> [Help 1]

what shoud  i do? Please help me.