Install Adobe AIR on Ubuntu 12.04

1. Download Latest Version Adobe Air for Linux

$ wget http://airdownload.adobe.com/air/lin/download/latest/AdobeAIRInstaller.bin

2. Change the persmission of the file

$ chmod +x ./AdobeAIRInstaller.bin

3. Install Adobe Air

$ sudo ./AdobeAIRInstaller.bin

While installing if you get message about missing gnome-keyring or KDE Wallet, then run the below command to fix it

$ sudo ln -s /usr/lib/i386-linux-gnu/libgnome-keyring.so.0/usr/lib/libgnome-keyring.so.0
$ sudo ln -s /usr/lib/i386-linux-gnu/libgnome-keyring.so.0.2.0/usr/lib/libgnome-keyring.so.0.2.0

For 64-bit systems

$ sudo ln -s /usr/lib/x86_64-linux-gnu/libgnome-keyring.so.0/usr/lib/libgnome-keyring.so.0
$ sudo ln -s /usr/lib/x86_64-linux-gnu/libgnome-keyring.so.0.2.0/usr/lib/libgnome-keyring.so.0.2.0

Re-run installer again

I hope you have successfully installed Adobe Air, In case if your facing any issues let me know.