iOS launchscreen

I tried to build a custom launch-screen for my iOS App. Hover the picture I have in it is shown in the storyboard in the app, but not when launching the actual app. If I add a system stock picture it works, but as soon as I use my own pictures it dosen’t work anymore.

I started using Projucer and all pictures are added there, do I have to set them somewhere else as resource for the storyboard?

What confuses me is that Xcode shows the launch screen correct but not the compiled app.

I got it solved.

I had to go to the browser in Xcode select the picture and select the app and au as Target Membership for the file.