xcode bounces but does not launch

Hello,

I'm having an issue launching Xcode. I'm new to is, and this is the first launch, and it apparently crashes, evidenced by the console.

default 09:48:35.657835 -0400 loginwindow -[PersistentAppsSupport applicationReady:] | App: Xcode, ready, updating active tracking timer

default 09:48:35.657885 -0400 loginwindow -[ApplicationManager checkInAppContext:refCon:eventData:] | checked in app : Xcode

error 09:48:35.694921 -0400 contextstored Death of untracked active application: com.apple.dt.Xcode

default 09:48:35.695196 -0400 loginwindow -[PersistentAppsSupport applicationQuit:] | for app:Xcode, _appTrackingState = 2

default 09:48:35.695224 -0400 loginwindow -[PersistentAppsSupport applicationQuit:] | App: Xcode, quit, updating active tracking timer

default 09:48:35.949740 -0400 loginwindow -[PersistentAppsSupport applicationReady:] | App: Xcode, ready, updating active tracking timer

default 09:48:35.949798 -0400 loginwindow -[ApplicationManager checkInAppContext:refCon:eventData:] | checked in app : Xcode

error 09:48:35.984439 -0400 contextstored Death of untracked active application: com.apple.dt.Xcode

default 09:48:35.984947 -0400 loginwindow -[PersistentAppsSupport applicationQuit:] | for app:Xcode, _appTrackingState = 2

default 09:48:35.984968 -0400 loginwindow -[PersistentAppsSupport applicationQuit:] | App: Xcode, quit, updating active tracking timer

error 09:48:37.064421 -0400 ReportCrash Failed to save crash report for Xcode[811] (version 10.2 (14490.120)) to (null).

error 09:48:37.073626 -0400 ReportCrash Failed to save crash report for Xcode[810] (version 10.2 (14490.120)) to (null).

(that's from one attempt to launch Xcode.

Computer Details:

2014 Retina iMac with 24GB RAM, Mojave 10.14.4 beta 18E174f

4Ghz Core i7

AMD Radeon R9 M295X 4GB

Any help is appreciated. Also, how do I get back to standard macOS (off the beta program?)