Problems to Install Beta 2

After upgrading the iPhone Version to IOS 13 Beta 2, I started to update my watchOS 6 to beta 2 as well. Unfortunately the update stopped after downloading onto the iPhone with an error Message :

Update can not be installed. During the Installation of the new watchOS Version onto the Apple Watch an error occured..

( my translation from German ;-) .


Any idea what happed and how to get around ?

Problems to Install Beta 2
 
 
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