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Problem Migrating DB for neutron-fwaas

Hi, I have a simple query. I am trying to create a migration script for neutron-fwaas.However, I am getting an error. Please see the command and response below:

Command:

neutron-db-manage --subproject neutron-fwaas revision -m "Firewall_rules table Updated to be case sensitive " --autogenerate

Error:

ERROR [alembic.util.messaging] Multiple heads are present; please specify the head revision on which the new revision should be based, or perform a merge. FAILED: Multiple heads are present; please specify the head revision on which the new revision should be based, or perform a merge.

Request you to please let me know how to proceed forward.

Problem Migrating DB for neutron-fwaas

Hi, I have a simple query. I am trying to create a migration script for neutron-fwaas.However, I am getting an error. Please see the command and response below:

Command:

neutron-db-manage --subproject neutron-fwaas revision -m "Firewall_rules table Updated to be case sensitive " --autogenerate

Error:

ERROR [alembic.util.messaging] Multiple heads are present; please specify the head revision on which the new revision should be based, or perform a merge. FAILED: Multiple heads are present; please specify the head revision on which the new revision should be based, or perform a merge.

Request you to please let me know how to proceed forward.

<< Additional Info >>

neutron-db-manage --subproject neutron-fwaas history

Running history for neutron-fwaas ...

c40fbb377ad -> 4b47ea298795 (expand) (head), add reject rule

kilo -> c40fbb377ad (expand), Initial Liberty no-op script.

kilo -> 67c8e8d61d5 (contract) (head), Initial Liberty no-op script.

796c68dffbb -> kilo (branchpoint), kilo

540142f314f4 -> 796c68dffbb, cisco_csr_fwaas

4202e3047e47 -> 540142f314f4, FWaaS router insertion

start_neutron_fwaas -> 4202e3047e47, add_index_tenant_id

<base> -> start_neutron_fwaas, start neutron-fwaas chain

OK