Composer create-project --prefer-dist cakephp/app myProjekt

I using php7.2 with vagrant under ubuntu 18.04. Composer is the newest one.

I wanted to start a new project with using:

composer create-project --prefer-dist cakephp/app myProjekt

But this come on output:

    Installing cakephp/app (3.8.0)
  - Installing cakephp/app (3.8.0): Loading from cache
Created project in myProjekt

  Composer could not find a composer.json file in /home/vagrant/projects/myProjekt

But this composer.json should be created!

Did I miss something?