After update Xcode8.3, the options \'-exportSigningIdentity\', \'-exportProvisioningProfile\' and \'-exportFormat\' are removed from \'xcodebuild
When you set Automatic Signing Enabled
Xcode will automatically generate according provisioning profile.
But in order to make your command working you need to manually export the archive the first time. Once it is done, Xcode will generate the provisioning profile (it starts by "XC" in the Apple Developer website).
Then your xcodebuild
command will work.
Product -> Archive
Once it's done
Windows -> Organizer -> Select the last version -> Export (right pannel under Upload to App Store)
Keep me inform if you need additional informations.