Install Bitcoin Core and let it sync (~180 GB of data to download at this point). Leave it running and then start up Armory. Also, make sure you're running Armory 0.96.4 RC1.
Are there any other solutions instead of downloading 180 GB of data? I want to send my bitcoin to another wallet. Do I have to sync before doing that? Or there is another way to send bitcoins without having to download 180 GB?