Installing correctly the WLAN in linux HP machines

http://askubuntu.com/questions/225297/wireless-not-working-hp-probook-4540s
Managed to run it on the terminal but the following message appears:
W: Duplicate sources.list entry http://dl.google.com/linux/chrome/deb/ stable/main i386 Packages (/var/lib/apt/lists/dl.google.com_linux_chrome_deb_dists_stable_main_binary-i386_Packages)
W: You may want to run apt-get update to correct these problems
I run sudo apt-get update, but the same message remains. It is not possible to continue as the following text appears:
sudo make && sudo make install && sudo make clean
make: *** No targets specified and no makefile found.  Stop.
What can I do?
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payorivero
Please, download this, and put it into your "Downloads" folder in ubuntu:
http://dl.dropbox.com/u/19624249/Driver.tar
That is the driver for your network card, and i am now going to show you how to install it. This file was downloaded from a bigger package on the internet. Download on own risk.
Extract all the files in the archive into a folder named "Driver" in your "Downloads".
Now, open a terminal by prssing Ctrl+Alt+T, and type:
sudo apt-get install linux-headers-$(uname -r) build-essential dkms
cd Downloads/Driver
Now, to install it:
sudo make && sudo make install && sudo make clean
Then, when it finish:
Blacklist the built-in driver, and load the new one with:
echo "blacklist rt2800pci" | sudo tee /etc/modprobe.d/blacklist-rt2800pci.conf
sudo modprobe -rfv rt2800pci
sudo modprobe -v rt3259sta
And reboot, and it should work!