NX ELECTRICAL ROUTING - FORMBOARD ERROR MESSAGE

[CAD2015]

Hi,

I am a beginner in NX Electrical Routing.
I have created an assembly (for training purpose only) by running:
- Opened a Routing Electrical new file
- Create two different components
- Qualify parts
- Created Harnesses using Spline Path

Then, I tried to create 2 D file (Tools-Formboard-Create Formboard Drawing).
Unfortunately, I got the message below:

Where I was wrong?

Thanks!

CAD 2015