regarding creating new maven project

Hi I have download the maven2.0.9 and I have set the maven path. Then I have created one folder my-app, in that I have created pom.xml file. Then I executed this command like this C:\mvnapp>mvn archetype:create -DgroupId=com.mycompany.app -DartifactId=my-app I am getting the follo

regarding Unable to download the artifact from any reposit and Error building POM (may not be this project's POM).

Hi I trying to create local repository in maven and I tried some commands like mvn clean install for default projetc but i getting this error message : I have realy no idea what the cause could be ? Could you please help me giving some idea ? Thx a lot for your help C:\ >mvn clean

RE: Fatal Error on pluggin clean

HI, I could't able to create proper repository and define pom.xml, settings.xml. So please let me know how to create sample project management using maven2.x. So please send proper documentation. I am getting the following error while executing this command : mvn clean install Thanks in adva