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

I tried all the suggestion above with Eclipse Photon. None worked. Finally got the marketplace to open by installing Eclipse to a path with no white spaces.

Answer 2

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'.

Answer 3

The solution is:

1. Go to-Window->Preferences->General->Network Connections

2. Choose "Active Provider" To "Direct"

3. then click "apply" and then "ok".

It will Start Opening.

Answer 4

I tried all the suggestions but no success for Eclipse Neon and Oxygen. At last it worked for Eclipse Neon when I added below line in Configuration Settings in eclipse folder.

-Djava.net.preferIPv4Stack=true

Edit Configuration Settings in eclipse folder and add the below line and save it. It will work.

Answer 5

I had same issue. I solved it with following steps:

• Window -> Preferences -> Secure Storage
• Tab - Contents
• Delete [Default Secure Storage]
• Restart Eclipse

Don't worry - Storage will be re-created automatically.

Answer 6

• Go to: Window->Preferences->General->Network Connections
• Choose "Active Provider" To "Native"
• Click 'apply' and then 'Ok'

NOTE: I gone through all possibilities - marketplace.eclipse.org/catalogs/api* (Not Working) - change 'Active Provider' to 'Manual'/'Direct'(Not Working) - Disable Proxies entries/Bypass(Not Working)