The first step in getting VoltAir running is to download and install Qt. Please visit the Qt Download Page and follow the steps to installation.
IMPORTANT: VoltAir will only build and run with Qt 5.3.1 or later.
When in the "Select Components" section, select only the Qt 5.3 version, as seen below:
Once Qt has been installed, you can proceed to the Configuring Qt Creator page.