alembic报错：No such revision or branch '71a72119935f'

[moeboke]

01-17 16:51:54 [ERROR] uvicorn | Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\alembic\script\base.py", line 254, in _catch_revision_errors
    yield
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\alembic\script\base.py", line 317, in get_revisions
    self.revision_map.get_revisions(id_),
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\alembic\script\revision.py", line 542, in get_revisions
    return sum([self.get_revisions(id_elem) for id_elem in id_], ())
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\alembic\script\revision.py", line 542, in <listcomp>
    return sum([self.get_revisions(id_elem) for id_elem in id_], ())
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\alembic\script\revision.py", line 565, in get_revisions
    return tuple(
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\alembic\script\revision.py", line 566, in <genexpr>
    self._revision_for_ident(rev_id, branch_label)
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\alembic\script\revision.py", line 637, in _revision_for_ident
    raise ResolutionError(
alembic.script.revision.ResolutionError: No such revision or branch '71a72119935f'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\starlette\routing.py", line 693, in lifespan
    async with self.lifespan_context(app) as maybe_state:
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\contextlib.py", line 181, in __aenter__
    return await self.gen.__anext__()
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\nonebot\drivers\fastapi.py", line 155, in _lifespan_manager
    await self._lifespan.startup()
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\nonebot\internal\driver\_lifespan.py", line 66, in startup
    await self._run_lifespan_func(self._startup_funcs)
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\nonebot\internal\driver\_lifespan.py", line 55, in _run_lifespan_func
    await cast(ASYNC_LIFESPAN_FUNC, func)()
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\nonebot_plugin_orm\__init__.py", line 84, in init_orm
    await greenlet_spawn(migrate.check, alembic_config)
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\sqlalchemy\util\_concurrency_py3k.py", line 201, in greenlet_spawn
    result = context.throw(*sys.exc_info())
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\nonebot_plugin_orm\migrate.py", line 567, in check
    script.run_env()
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\alembic\script\base.py", line 586, in run_env
    util.load_python_file(self.dir, "env.py")
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\alembic\util\pyfiles.py", line 95, in load_python_file
    module = load_module_py(module_id, path)
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\alembic\util\pyfiles.py", line 113, in load_module_py
    spec.loader.exec_module(module)  # type: ignore
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\nonebot_plugin_orm\templates\generic\env.py", line 90, in <module>
    await_only(coro)
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\sqlalchemy\util\_concurrency_py3k.py", line 132, in await_only
    return current.parent.switch(awaitable)  # type: ignore[no-any-return,attr-defined] # noqa: E501
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\sqlalchemy\util\_concurrency_py3k.py", line 196, in greenlet_spawn
    value = await result
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\nonebot_plugin_orm\templates\generic\env.py", line 79, in run_migrations_online
    await connection.run_sync(do_run_migrations)
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\sqlalchemy\ext\asyncio\engine.py", line 887, in run_sync
    return await greenlet_spawn(
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\sqlalchemy\util\_concurrency_py3k.py", line 203, in greenlet_spawn
    result = context.switch(value)
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\nonebot_plugin_orm\templates\generic\env.py", line 69, in do_run_migrations
    context.run_migrations()
  File "<string>", line 8, in run_migrations
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\alembic\runtime\environment.py", line 946, in run_migrations
    self.get_context().run_migrations(**kw)
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\alembic\runtime\migration.py", line 611, in run_migrations
    for step in self._migrations_fn(heads, self):
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\nonebot_plugin_orm\migrate.py", line 552, in retrieve_migrations
    if set(script.get_revisions(rev)) != set(script.get_revisions("heads")):
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\alembic\script\base.py", line 315, in get_revisions
    return cast(
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\contextlib.py", line 137, in __exit__
    self.gen.throw(typ, value, traceback)
  File "C:\ProgramData\Anaconda3\envs\nbbot\lib\site-packages\alembic\script\base.py", line 286, in _catch_revision_errors
    raise util.CommandError(resolution) from re
alembic.util.exc.CommandError: Can't locate revision identified by '71a72119935f'

01-17 16:51:54 [ERROR] uvicorn | Application startup failed. Exiting.

在启动的最后出现这个报错。

[yanyongyu]

你是不是卸载了什么插件，卸载前没有 orm downgrade。

如果不在意数据的话可以直接删除数据库。如果在意数据的话，就需要把插件下回来，downgrade 之后再卸载