I was trying to install cloudstack 4.0.1 and following the error I see while mvn3 -P deps
[INFO] Scanning for projects... Downloading: http://repo.maven.apache.org/maven2/org/apache/apache/11/apache-11.pom [ERROR] The build could not read 1 project -> [Help 1] [ERROR] [ERROR] The project org.apache.cloudstack:cloudstack:4.0.1-incubating-SNAPSHOT (/home/pe1/Apache-Cloudstack/apache-cloudstack-4.0.1-incubating-src/pom.xml) has 1 error [ERROR] Non-resolvable parent POM: Could not transfer artifact org.apache:apache:pom:11 from/ to central (http://repo.maven.apache.org/maven2): repo.maven.apache.org and 'parent.relativePath' points at wrong local POM @ line 23, column 11: Unknown host repo.maven.apache.org -> [Help 2] [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] [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/ProjectBuildingException [ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/UnresolvableModelException repo.maven.apache.org appears to be down. nslookup return error "repo.maven.apache.org" Thanks and Regards, Karthik Kothuri