No available routes when adding pair to SecretSwap

anyone can help to add an asset pair in SecretSwap?
I created an asset pair in secretswap and I get the error ‘No route available’
I used this factory contract address: secret1fjqlk09wp7yflxx7y433mkeskqdtw3yqerkcgp
And this command:
secretcli tx compute execute secret1fjqlk09wp7yflxx7y433mkeskqdtw3yqerkcgp ‘{“create_pair”: {“asset_infos”: [{“token”: {“contract_addr”: “”,“token_code_hash”: “”,“viewing_key”: “” }},{“token”: {“contract_addr”: “”,“token_code_hash”: “”,“viewing_key”: “”}}]}}’ --from