title: Getting error in pom.xml. It shows connection timed out. My network proxy does not allow to connect to Maven
body: <p>When I was trying to use Maven in my project, I got the below error building:</p>
  
  <blockquote>
    <p>CoreException: Could not calculate build plan: Plugin org.apache.maven.plugins:maven-compiler-plugin:3.5.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-compiler-plugin:jar:3.5.1: ArtifactResolutionException: Failure to transfer org.apache.maven.plugins:maven-compiler-plugin:pom:3.5.1 from <a href="https://repo.maven.apache.org/maven2" rel="nofollow">https://repo.maven.apache.org/maven2</a> was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.apache.maven.plugins:maven-compiler-plugin:pom:3.5.1 from/to central (<a href="https://repo.maven.apache.org/maven2" rel="nofollow">https://repo.maven.apache.org/maven2</a>): connect timed out</p>
  </blockquote>