AVD Manager - Cannot Create Android Virtual Device

I had trouble creating an AVD.

Either:

• re-start eclipse after installing SDK versions from the SDK manager, or
• you should run the "AVD Manager.exe" outside of Eclipse

First, make sure you don't have spaces (or other illegal characters like '+','=','/',etc) in the "AVD Name" field. Spaces broke it for me.

You either haven't selected a CPU/ABI target in the dropdown below the target, or you haven't installed a system image. Open your SDK manager and ensure that you've installed ARM EABI v7a System Image under the Android 4.2 section.