Android libraries not found

Question

In my android project I am writing a program to connect to a server and below are the libraries that I need to use.

But I get an error saying the following cannot b

Answer 1

download the jar from here : http://commons.apache.org/

install it in your project like this:

Right click on your project and go to properties. On the left tab go to "java build path". And in that on right go to libraries. Click on add external jars and give the path of the jar and your library is added.