Error downloading http://downloads.arduino.cc/packages/package_index.json
when i open board manager on my Arduino IDE, This error occurs.
I have tried this
Open command prompt (windows start button, type cmd in search) Click top left of command prompt, click properties, enable quick edit mode Copy: setx _JAVA_OPTIONS -Djava.net.preferIPv4Stack=true Right click on command prompt, should paste Hit enter.
But it didn't solved the issue.
Please Suggest what else could be the reason.