This fix worked for me: on the Turbotax Menu click on "Turbotax" in the upper far left, then hold down the "option" button on your Mac keyboard. When you hold the "option" button it will change the "check for updates" to read "download latest updates". While continuing to hold down the "option" button click on "download latest updates". Once it updates the software you should be able to e-file. Hope that helps as it worked for me.
