Ubuntu – Failed to run Android SDK manager

Android SDK platform tools requires ia32-libs, which itself is a big package of libraries:

sudo apt-get install ia32-libs

UPDATE:

Below are the latest instructions from Google on how to install Android SDK library dependencies:

If you are running a 64-bit distribution on your development machine, you need to install additional packages first. For Ubuntu 13.10 (Saucy Salamander) and above, install the libncurses5:i386, libstdc++6:i386, and zlib1g:i386 packages using apt-get:

sudo dpkg --add-architecture i386
sudo apt-get update
sudo apt-get install libncurses5:i386 libstdc++6:i386 zlib1g:i386

For earlier versions of Ubuntu, install the ia32-libs package using apt-get:

apt-get install ia32-libs

This problem is occurring because the Android SDK is compiled for a 32-bit GNU/Linux system, and your Ubuntu system is a 64-bit GNU/Linux system. The solution should be easy (since Ubuntu fully supports running 32-bit programs on a 64-bit OS)--just install the 32-bit versions of the libraries it needs.

The simplest and easiest way to do this is to install the 32-bit versions of all the most commonly used libraries, by installing the ia32-libs package. You can do this in the Software Center or in the Terminal with:

sudo apt-get update
sudo apt-get install ia32-libs

Originally ia32-libs was provided because Ubuntu, in its default configuration, didn't support installing 32-bit Ubuntu packages on a 64-bit system. Now that this is fully supported by default, the ia32-libs package just causes the same 32-bit packages to be installed on your 64-bit system that would be installed on a minimal 32-bit system. (So for anyone who is worried this might not work now that multarch is supported by default: it still works.)

Source: Android/Eclipse Installation on Ubuntu 11.04 - aapt and adb not working properly
See also: Eclipse Android Plugin — libncurses.so.5