python - Flask migration error -


i've got application build on flask , wanted create new migration today. when run $python manage.py db upgrade

i got message

raise util.commanderror('only single head supported. ' alembic.util.commanderror: single head supported. script directory has multiple heads (due branching), must resolved manually editing revision files form linear sequence. run alembic branches see divergence(s).

so run command $alembic branches no config file 'alembic.ini' found, or file has no '[alembic]' section

any clue on about?

the error messages coming alembic, use command form alembic <command>, integrating flask coming flask-migrate, need use form python manage.py db branches.

to resolve multiple branches, make 1 of branches point down other branch upgrade graph straight line.


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