Skype not able to run on ubuntu 64 bit versions

1. Open the desktop file with this command -

~$ gksu gedit /usr/share/applications/skype.desktop

2. You will see a line in this file which is similar to : Exec=env PULSE_LATENCY_MSEC=60 skype %U

replace this line with Exec=env PULSE_LATENCY_MSEC=60 LD_LIBRARY_PATH=/usr/lib/i386-linux-gnu/  /usr/bin/skype %U

save the skype.desktop file.

3. You will be  able to run skype normally.

If above changes doesn't solve the problem then we need to install few i386 packages in ubuntu : lib32stdc++6 lib32asound2 ia32-libs libc6-i386 lib32gcc1