Why can't I use directives?

[VoVuongThanhDat]

I am getting error like this when using directives. Can someone help me?

Process SpawnProcess-24:
 Traceback (most recent call last):
   File "/usr/local/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
    self.run()
   File "/usr/local/lib/python3.9/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
   File "/venv/lib/python3.9/site-packages/uvicorn/subprocess.py", line 76, in subprocess_started
     target(sockets=sockets)
   File "/venv/lib/python3.9/site-packages/uvicorn/server.py", line 50, in run
     loop.run_until_complete(self.serve(sockets=sockets))
   File "/usr/local/lib/python3.9/asyncio/base_events.py", line 642, in run_until_complete
     return future.result()
   File "/venv/lib/python3.9/site-packages/uvicorn/server.py", line 57, in serve
     config.load()
   File "/venv/lib/python3.9/site-packages/uvicorn/config.py", line 318, in load
     self.loaded_app = import_from_string(self.app)
   File "/venv/lib/python3.9/site-packages/uvicorn/importer.py", line 22, in import_from_string
     module = importlib.import_module(module_str)
   File "/usr/local/lib/python3.9/importlib/__init__.py", line 127, in import_module
     return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
   File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
   File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
   File "/app/./classroom/main.py", line 26, in <module>
    schema = make_executable_schema(type_def, datetime_scalar, query, mutation, subscription, union, classroom,
   File "/venv/lib/python3.9/site-packages/ariadne/executable_schema.py", line 37, in make_executable_schema
     SchemaDirectiveVisitor.visit_schema_directives(schema, directives)
   File "/venv/lib/python3.9/site-packages/ariadne/schema_visitor.py", line 394, in visit_schema_directives
     declared_directives = cls.get_declared_directives(schema, directive_visitors)
   File "/venv/lib/python3.9/site-packages/ariadne/schema_visitor.py", line 341, in get_declared_directives
    each(schema.directives, _add_directive)
   File "/venv/lib/python3.9/site-packages/ariadne/schema_visitor.py", line 63, in each
     for key, value in list_or_dict.items():
AttributeError: 'tuple' object has no attribute 'items'

[rafalp]

If you are using graphql-core 3.2, you'll have to downgrade with pip install graphql-core<3.2. It should work then. :)

Sadly we don't limit graphql-core version in our setup.py and new one has been released recently that's not backwards compatibile.

[VoVuongThanhDat]

Yep, it worked. Thanks you