I am having issues adding an external jar library to my project in Eclipse. I downloaded the javallier library from GitHub and added it to my referenced libraries. In my package explorer, it looks like this: Picture 1
Somehow, Eclipse can neither find the source attachment or the Javadoc location: Picture 2
I tried downloading the java source attacher (which somehow I cannot download) and I also tried adding the source attachment manually, yet I do not know where to link it to.