Still not working after trying a few different version numbers I found. (sdk download site, visual studio version info, latest version on Wikipedia)
Its not listed in installed programs and I even searched the registry but could not find it yet.
I updated to VS 15.4 and used the latest SDK version 10.0.15063.468 but it's not working.
[quote:mc5x0xzn]Schweregrad Code Beschreibung Projekt Datei Zeile Unterdrückungszustand
Fehler "10.0.15063.468" ist kein unterstützter Wert für TargetPlatformVersion. Ändern Sie den Wert auf der Seite mit den Projekteigenschaften. TheVeryLongWalk C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\MSBuild\Microsoft\VisualStudio\v15.0\JavaScript\Microsoft.VisualStudio.JavaScript.UAP.targets 83
Wheres the required version I have to enter noted?
/update: after looking through some help pages I finally found you can set the target version via rightclick > settings and the suggested number was 10.0.15063.0 without the .468 at the end. I could finally start the preview but it was stuck at the C3 loading screen. I try to export again with 10.0.15063.0 now and see if it works.
/update2: I could now run the preview. its showing the C2 loading icon (exported with C3) for about a minute at 10% and then it finally started the game.
I could log in to my test account (Xbox Live) but it did not show the avatar in the sprite after getting profile info but I will add some debug info to see whats wrong. Its finally working to preview it in Visual Studio.