当我尝试构建OpenNaaS项目时，直接从Github下载，我在mvn install中收到以下错误：
[ERROR] Failed to execute goal on project org.opennaas.core.resources: Could not resolve dependencies for project org.opennaas:org.opennaas.core.resources:bundle:0.29-SNAPSHOT:... [ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn <goals> -rf :org.opennaas.core.resources
我是OpenNaaS和Maven的新手。我的环境是Ubuntu 14.04 64位whit Maven 3版本。我没有对我下载的OpenNaaS稳定项目中的src或其他文件进行任何更改。我如何建立这个项目？