title: maven archetype:generate first time execution throws error
body: <p>I'm running eclipse kepler 4.3 and maven 3.0.5 while running <strong>maven:archetype generate</strong> for first time it says Failed to download the required plugins.Build failed and throwing <strong>NoPluginFoundForPrefixException</strong>.I'm new to maven please someone assist me. </p>
  
  <pre><code>    [INFO] Scanning for projects...
  Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-
  clean-plugin/2.4.1/maven-clean-plugin-2.4.1.pom
  [WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:mave
  n-clean-plugin:2.4.1: Plugin org.apache.maven.plugins:maven-clean-plugin:2.4.1 o
  r one of its dependencies could not be resolved: Failed to read artifact descrip
  tor for org.apache.maven.plugins:maven-clean-plugin:jar:2.4.1
  Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-
  install-plugin/2.3.1/maven-install-plugin-2.3.1.pom
  [WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:mave
  n-install-plugin:2.3.1: Plugin org.apache.maven.plugins:maven-install-plugin:2.3
  .1 or one of its dependencies could not be resolved: Failed to read artifact des
  criptor for org.apache.maven.plugins:maven-install-plugin:jar:2.3.1
  Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-
  deploy-plugin/2.7/maven-deploy-plugin-2.7.pom
  [WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:mave
  n-deploy-plugin:2.7: Plugin org.apache.maven.plugins:maven-deploy-plugin:2.7 or
  one of its dependencies could not be resolved: Failed to read artifact descripto
  r for org.apache.maven.plugins:maven-deploy-plugin:jar:2.7
  Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-
  site-plugin/3.0/maven-site-plugin-3.0.pom
  [WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:mave
  n-site-plugin:3.0: Plugin org.apache.maven.plugins:maven-site-plugin:3.0 or one
  of its dependencies could not be resolved: Failed to read artifact descriptor fo
  r org.apache.maven.plugins:maven-site-plugin:jar:3.0
  Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-
  antrun-plugin/1.3/maven-antrun-plugin-1.3.pom
  [WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:mave
  n-antrun-plugin:1.3: Plugin org.apache.maven.plugins:maven-antrun-plugin:1.3 or
  one of its dependencies could not be resolved: Failed to read artifact descripto
  r for org.apache.maven.plugins:maven-antrun-plugin:jar:1.3
  Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-
  assembly-plugin/2.2-beta-5/maven-assembly-plugin-2.2-beta-5.pom
  [WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:mave
  n-assembly-plugin:2.2-beta-5: Plugin org.apache.maven.plugins:maven-assembly-plu
  gin:2.2-beta-5 or one of its dependencies could not be resolved: Failed to read
  artifact descriptor for org.apache.maven.plugins:maven-assembly-plugin:jar:2.2-b
  eta-5
  Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-
  dependency-plugin/2.1/maven-dependency-plugin-2.1.pom
  [WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:mave
  n-dependency-plugin:2.1: Plugin org.apache.maven.plugins:maven-dependency-plugin
  :2.1 or one of its dependencies could not be resolved: Failed to read artifact d
  escriptor for org.apache.maven.plugins:maven-dependency-plugin:jar:2.1
  Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-
  release-plugin/2.0/maven-release-plugin-2.0.pom
  [WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:mave
  n-release-plugin:2.0: Plugin org.apache.maven.plugins:maven-release-plugin:2.0 o
  r one of its dependencies could not be resolved: Failed to read artifact descrip
  tor for org.apache.maven.plugins:maven-release-plugin:jar:2.0
  Downloading: http://repo.maven.apache.org/maven2/org/codehaus/mojo/maven-metadat
  a.xml
  Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-
  metadata.xml
  [WARNING] Could not transfer metadata org.apache.maven.plugins/maven-metadata.xm
  l from/to central (http://repo.maven.apache.org/maven2): Connection to http://re
  po.maven.apache.org refused
  [WARNING] Could not transfer metadata org.codehaus.mojo/maven-metadata.xml from/
  to central (http://repo.maven.apache.org/maven2): Connection to http://repo.mave
  n.apache.org refused
  [WARNING] Failure to transfer org.apache.maven.plugins/maven-metadata.xml from h
  ttp://repo.maven.apache.org/maven2 was cached in the local repository, resolutio
  n will not be reattempted until the update interval of central has elapsed or up
  dates are forced. Original error: Could not transfer metadata org.apache.maven.p
  lugins/maven-metadata.xml from/to central (http://repo.maven.apache.org/maven2):
   Connection to http://repo.maven.apache.org refused
  [WARNING] Failure to transfer org.codehaus.mojo/maven-metadata.xml from http://r
  epo.maven.apache.org/maven2 was cached in the local repository, resolution will
  not be reattempted until the update interval of central has elapsed or updates a
  re forced. Original error: Could not transfer metadata org.codehaus.mojo/maven-m
  etadata.xml from/to central (http://repo.maven.apache.org/maven2): Connection to
   http://repo.maven.apache.org refused.
  </code></pre>
  
  <p>This is what i'm getting from command line.. and i'm using windows 7.</p>