rasa data validate fails on example formbot

[JEM-Mosig]

Rasa Open Source version

3.0.1

Rasa SDK version

3.0.0rc3

Rasa X version

No response

Python version

3.8

What operating system are you using?

OSX

What happened?

cd into rasa/examples/formbot, run rasa data validate and get

UserWarning: The form 'None' is used in the 'submit form' block, but it is not listed in the domain file. You should add it to your domain file!

This seems to break validation of all forms of all bots. Training works, though.

Command / Request

`rasa data validate`

Relevant log output

(rasa-3.0.0) johannes:formbot/ (b055f901954) $ rasa data validate                                                               [18:28:57]
/Users/johannes/rasa/rasa/rasa/shared/utils/io.py:99: UserWarning: The form 'None' is used in the 'submit form' block, but it is not listed in the domain file. You should add it to your domain file!
  More info at https://rasa.com/docs/rasa/forms
Project validation completed with errors.

Definition of done

• Fix bug

[cryoff]

I faced the same issue with example pizza bot from this video:
https://www.youtube.com/watch?v=YYh1ECnlw9o

And the code is taken from here:
https://github.com/RasaHQ/conversational-ai-course-3.x

I am using rasa 3.0.2

[bml1g12]

Same issue here

[roelboumans]

@koaning I experience the same problem as Hongbo-Miao. The above comments by alwx did not provide a clear solution to this problem for me, unfortunately. I did not run into this problem with Rasa 2.8.6, but it occured after upgrade to Rasa 3.0.3.

[svenvanderburg]

It seems this is not released yet? Any idea when it will be released? @alwx

[mdurmuss]

I faced with the same issue. Here is the output of rasa --version

• Rasa Version : 3.0.6
• Minimum Compatible Version: 3.0.0
• Rasa SDK Version : 3.0.4
• Python Version : 3.7.9

[hsm207]

This issue still exists in 3.0.8:

Rasa Version      :         3.0.8
Minimum Compatible Version: 3.0.0
Rasa SDK Version  :         3.0.4
Rasa X Version    :         None
Python Version    :         3.8.10
Operating System  :         Linux-5.10.76-linuxkit-x86_64-with-glibc2.29
Python Path       :         /opt/venv/bin/python

[m-vdb]

It seems that the bug was fixed on main but not on 3.0.x. This needs to be done