Starting backend fastapi is not found

[guyko81]

sudo uvicorn opendevin.server.listen:app --port 3000 Traceback (most recent call last): File "/usr/bin/uvicorn", line 33, in sys.exit(load_entry_point('uvicorn==0.15.0', 'console_scripts', 'uvicorn')()) File "/usr/lib/python3/dist-packages/click/core.py", line 1128, in call return self.main(*args, **kwargs) File "/usr/lib/python3/dist-packages/click/core.py", line 1053, in main rv = self.invoke(ctx) File "/usr/lib/python3/dist-packages/click/core.py", line 1395, in invoke return ctx.invoke(self.callback, **ctx.params) File "/usr/lib/python3/dist-packages/click/core.py", line 754, in invoke return __callback(*args, **kwargs) File "/usr/lib/python3/dist-packages/uvicorn/main.py", line 425, in main run(app, **kwargs) File "/usr/lib/python3/dist-packages/uvicorn/main.py", line 447, in run server.run() File "/usr/lib/python3/dist-packages/uvicorn/server.py", line 68, in run return asyncio.run(self.serve(sockets=sockets)) File "/usr/lib/python3.10/asyncio/runners.py", line 44, in run return loop.run_until_complete(main) File "/usr/lib/python3.10/asyncio/base_events.py", line 649, in run_until_complete return future.result() File "/usr/lib/python3/dist-packages/uvicorn/server.py", line 76, in serve config.load() File "/usr/lib/python3/dist-packages/uvicorn/config.py", line 448, in load self.loaded_app = import_from_string(self.app) File "/usr/lib/python3/dist-packages/uvicorn/importer.py", line 24, in import_from_string raise exc from None File "/usr/lib/python3/dist-packages/uvicorn/importer.py", line 21, in import_from_string module = importlib.import_module(module_str) File "/usr/lib/python3.10/importlib/init.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "", line 1050, in _gcd_import File "", line 1027, in _find_and_load File "", line 1006, in _find_and_load_unlocked File "", line 688, in _load_unlocked File "", line 883, in exec_module File "", line 241, in _call_with_frames_removed File "/home/ubuntu/OpenDevin/./opendevin/server/listen.py", line 1, in from opendevin.server.session import Session File "/home/ubuntu/OpenDevin/./opendevin/server/session.py", line 5, in from fastapi import WebSocketDisconnect ModuleNotFoundError: No module named 'fastapi'