I am using eclipse kepler 32 bit. I am trying to install IBM Worklight Developer Edition V6.1.0.1 from market place. I am getting following error.
I tried running it as administrator. Also tried to append -vmargs -Djava.net.preferIPv4Stack=true at the ini file. but nothing worked out.
I tried connecting to american VPN, I was able to download the files quick. The plugin got installed without any issues.
It might have been an outage; it seems to be working now. I just installed successfully from Eclipse Marketplace. Try now and let us know if it still fails.
Also, make sure you are using the Java EE Developer edition of Eclipse 4.3.1: https://www.eclipse.org/downloads/packages/eclipse-ide-java-ee-developers/keplersr1
And check all of the system requirements here to ensure you have the right environment: http://www-01.ibm.com/support/docview.wss?uid=swg27024838
Alternatively, you can download the zip file and install from eclipse workbench as a local archive.