At first I apologize for my bad english, my mothers tongue is german, but I think u will understand me and hopefully my problem too 
For now, I did the tutorial three times, but I cant fire the sphere.
On page six is said:
But not for me 
I dont know whats wrong. To ensure that I havenât messed up the script, I C&P it.
The camera of my FPS-Controler âlooksâ in the same direction as the launcher.
I went a little further and tried to add the explosion, but still nothing happens when pressing fire.
Some ideas?
Can we see your code? Also make sure you have selected an object in the inspector to fire.
Thank your for your answer.
I have deleted the the project folder because I will try it now the fourth time
After breakfast I beginn with the tutorial again, and then post some screenshots, and post the code(I suppose you mean the java script) and some screenshots.
Does the sphere or launcher has to be marked in the inspector to fire?
Your are going to put the launcher code on the launcher and a variable in the inspector will say something like projectile, put the projectile there.
sorry for stealing your time, but it seems that it now works.
I thought doing it tree times without success should be enough to look for some help. Maybe there was one tiny little step wich I have elided the first tree times
But as sure as hell, I will find some new questions to bother you and the rest of the community
MarkusB which tutorial are you trying? I would like to try it too.