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
For me I solved the problem by those steps:
Use the CNTLM proxy, which can be installed and run by following this GitHub readme file.
Go to-Window->Preferences->General->Network Connections
Click on an empty line and add a host and the same port that youn configured in CNTLM