Hello people. I'm new to iOS development. While learning how apple ecosistem is working and trying to set some debugging flags for my iOS app at one point I tried to set an Environment Variable in PRODUCTSCHEMEEDIT SCHEME, in Arguments tab. Even though I just hit the plus button to set the new variable without actually setting one I introduced this bug. After removing the empty environment variable from the scheme everything started working correctly. Hope this will help others.

Same here, while using emulator, but it happens only when i'm using my hardware keyboard. I have the same senderID as yours(778835616971358211) and my keyboard is Microsoft and USB connected. If i use emulator Software Keyboard the messages are not appearing. Probably no reason to be concerned.

This happened to me when using git clone command. From what i've read throw this thread this will happed when XCode has some available updates for the command line tools. By simply updating Xcode and all it's components the messages where gone This where the messages: Requested but did not find extension point with identifier Xcode.IDEKit.ExtensionSentinelHostApplications for extension Xcode.DebuggerFoundation.AppExtensionHosts.watchOS of plug-in com.apple.dt.IDEWatchSupportCore Requested but did not find extension point with identifier Xcode.IDEKit.ExtensionPointIdentifierToBundleIdentifier for extension Xcode.DebuggerFoundation.AppExtensionToBundleIdentifierMap.watchOS of plug-in com.apple.dt.IDEWatchSupportCore