Cannot open Eclipse Marketplace Cannot install remote marketplace locations: Cannot resolve host

Question

I am using eclipse Kepler version and trying to install Sonar plugin from Eclipse marketplace. But I am getting below error

Cannot open Eclipse Market

Answer 1

Are you running behind a NTLM proxy? If so you might find help at this Thread

A bit hacky workaround would be to download the plugins manually and than add it via 'Add local update site'.