Error while trying compiling

[heat]

I'm attemping to compile the source from bash. Is there any trick to solve this dep?

[INFO] Scanning for projects...
Downloading: https://oss.sonatype.org/content/repositories/snapshots/org/sonatype/plugins/nexus-staging-maven-plugin/1.6.3/nexus-staging-maven-plugin-1.6.3.pom

Downloading: http://repo.maven.apache.org/maven2/org/sonatype/plugins/nexus-staging-maven-plugin/1.6.3/nexus-staging-maven-plugin-1.6.3.pom

[ERROR] The build could not read 1 project -> [Help 1]
[ERROR]   
[ERROR]   The project io.reinert.requestor:requestor-parent:0.2.0-SNAPSHOT (C:\Users\kb5w\Projetos\github.com\heat\requestor\requestor\pom.xml) has 1 error
[ERROR]     Unresolveable build extension: Plugin org.sonatype.plugins:nexus-staging-maven-plugin:1.6.3 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.sonatype.plugins:nexus-staging-maven-plugin:jar:1.6.3: Could not transfer artifact org.sonatype.plugins:nexus-staging-maven-plugin:pom:1.6.3 from/to sonatype-nexus-snapshots (https://oss.sonatype.org/content/repositories/snapshots): Error transferring file: inet-se.petrobras.com.br from https://oss.sonatype.org/content/repositories/snapshots/org/sonatype/plugins/nexus-staging-maven-plugin/1.6.3/nexus-staging-maven-plugin-1.6.3.pom with proxyInfo ProxyInfo{host='inet-se.petrobras.com.br', userName='null', port=8080, type='http', nonProxyHosts='null'} -> [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/PluginResolutionException
[Finished]

[reinert]

You're having trouble with your proxy settings.

If you're under a Windows NTLM network, I suggest using cntlm.