Maven: Failed to retrieve plugin descriptor error

Question

I configured Maven 3.0.3 and tried to download a sample project using archetypes with this command:

mvn archetype:generate -DarchetypeGroupId=org.graniteds.         


        

Answer 1

I have to put

 
  optional
  true
  http
  Your proxy host
  proxy host ip
  local.net|some.host.com

Before

 
  optional
  true
  https
  Your proxy host
  proxy host ip
  local.net|some.host.com

Weird, but yes!, http has to come before https. It solved my problem. Hope it helps someone who faces connections issue even after enabling proxy settings in conf/settings.xml.