Just downloaded XCode (version 10B61) and trying to update one of my apps when this error came up:
Invalid Toolchain. New apps and app updates must be built with the public (GM) versions of Xcode 9 or later, macOS, and iOS SDK or later. Don't submit apps built with beta software including beta macOS builds.
I downloaded directly from the app store.
Anyone else having issues?
Dan Uff