Error Downloading the ESP8266 Library .?

Hello Instructable Community, I was a problem downloading the ESP8266 Library (I have W7 installed on my Laptop), the problem in question was “Error Downloading http://download.arduino.cc/libraries/library_inde... I find a solution:


  1. Close The Arduino IDE
  2. Open Command Prompt
  3. Type “setx _JAVA_OPTIONS -Djava.net.preferIPv4Stack=true” command on command prompt
  4. Press Enter

The following link explains the solution and the problem http://iotboys.com/how-to-fix-arduino-ide-additional-library-installation-error/