lrwxrwxrwx 1 root root 33 2008-12-15 14:12 build -> /home/edhe/Desktop/linux-18.104.22.168
It seems that you've downloaded a vanilla kernel and extracted in your desktop. Have you compiled and installed that kernel? Whats is the output of:
If you're not sure what to do, it's better to install the kernel-sources of your distro using its package manager.