In eclipse, the m2eclipse plugin will prompt me for my credentials when I'm building a maven2 project. And it compiles fine.
But if I now try to run "mvn install" from the command line, I get an artifact not found error. How do I add the username/password into my pom.xml in order to solve this problem.
Which username password you talking about? If its the username defined in nexus repository then you can define in settings.xml
where you defined the nexus repository.
<servers>
<server>
<id>releases</id>
<username>xxxxxxxxx</username>
<password>yyyyyyyy</password>
</server>
</servers>