I'm trying to install Android Studio on a 64-bit Fedora 21 system.
I got the JRE and JDK pre-requisites installed, unpacked the Android Studio installation, and from its "bin" directory issued "sh studio.sh" to complete the installation.
The Setup Wizard failed with message "Unable to run mksdcard SDK tool" and suggested that 32-bit libraries might be needed.
From a discussion of the problem at http://forums.fedoraforum.org/showthread.php?t=303238 I installed several packages with the command
sudo yum install compat-libstdc++-296.i686 compat-libstdc++-33.i686 ncurses-libs.i686 compat-libstdc++-33.x86_64
After these (and their dependencies) were successfully installed, clicking "RETRY" in the Setup Wizard popup displaying the error allowed the installation of Android Studio to proceed to a successful completion.