Rasa Lookup Table Linking

I have Created a Lookup Folder and created a location.yml file in which i have give a lookup table of location and linked that location.yml in nlu in this way

version: "3.1"
nlu:
- lookup: location
  examples: |
    - Abohar
    - Aburoad
    - Adayar
    - Adityapur
    - Adoor
    - Adugodi
    - Agartala
    - Agra (This is Lookup Table)
--------------------------------------------------------------------------------------------------------
version: "3.1"

nlu:

- lookup: location
    -  data/lookups/location.yml (This is how i am linking it in nlu)

- intent: greet
  examples: |
    - hey
    - hello
    - hi
    - hello there
    - good morning
    - good evening
    - moin
    - hey there
    - let's go
    - hey dude
    - good morning
    - good evening
    - good afternoon

but i am getting a warning while training

/Chatbot/chatbot_new/lib/python3.7/site-packages/rasa/shared/utils/io.py:98: UserWarning: Issue found while processing 'data/nlu.yml': 'lookup: location -  data/lookups/location.yml' doesn't have any examples. It will be skipped.
  More info at https://rasa.com/docs/rasa/training-data-format  I am using Rasa 3.4 version 

your suggestions & opinions are appreciated

You don’t need to link the files. Remove the lookup section in the second nlu file.