Hi Jasmin,
I tried by deleting the project and creating a fresh one but still getting same dump.
I noticed two things which i would like to share with you.
1: In the guide there is separate step to create Entity Sets: But in my case Entity set and Entity type are getting created at the same time.
2: Am getting a success message(Mapping To Data Source Was Created Successfully) as well along with the short dump.
Thanks ,
Girdhari