Android -Cannot run program "XXX/sdk/tools/emulator": error=2, No such file or directory

I have installed android SDK and eclipse successfully on ubuntu 14.04.

However,now it's not running.This is the output error when I start the AVD:

Starting emulator for AVD 'avd'
Failed to start emulator: Cannot run program "/opt/adt-bundle-linux/sdk//tools/emulator": error=2, No such file or directory

I find information via google, everyone says this is because my system version is 64, while the adt only support 32.

The solutions:

Go to emulator directory（xx/sdk/tools） and run:

mv emulator emulator.bak
ln -s emulator64-arm emulator

No need to install any ia32 libs.

post from: http://stackoverflow.com/questions/17474401/cannot-run-program-xx-sdk-tools-emulator-java-io-ioexception-error-2-no-s