When I run my android app from eclipse, I get this error.
Unexpected exception \'Cannot run program \"/home/antz/Development/adt-bundle-linux/sdk/platform-t
I am running Ubuntu 12.04 LTS and this command is the only thing that worked for me:
sudo apt-get install lib32z1 lib32z1-dev
Once I ran that from a command line, I was able to get the R.java file to generate (the tell-tale sign that something in your Android SDK tools installation is not quite right) by doing a Project > Clean in Eclipse.