i write a simple code with pyrogram to get messages from a public channel.
i get the chaanel_id and passed it to the function but teh code raise an error.
could you please help me why it raises this error although the channel_id is correct?

this is my code:

app = Client("my_botn", api_id=int(api_id), api_hash=api_hash,proxy=proxy)
async def get_chat_history(chat_id):
    async with app:
        async for message in app.get_chat_history(-1002245761378):
            print(message.text)
chat_id=-1002245761378
app.run(get_chat_history(chat_id))

error is :

Tr

aceback (most recent call last):
  File "C:UsersMohammadvenvLibsite-packagespyrogrammethodsadvancedresolve_peer.py", line 62, in resolve_peer
    return await self.storage.get_peer_by_id(peer_id)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UsersMohammadvenvLibsite-packagespyrogramstoragesqlite_storage.py", line 142, in get_peer_by_id
    raise KeyError(f"ID not found: {peer_id}")
KeyError: 'ID not found: -1002245761378'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:UsersMohammadvenvmybot.py", line 19, in <module>
    app.run(get_chat_history(chat_id))
  File "C:UsersMohammadvenvLibsite-packagespyrogrammethodsutilitiesrun.py", line 77, in run
    run(coroutine)
  File "C:UsersMohammadAppDataLocalProgramsPythonPython312Libasynciobase_events.py", line 687, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
           ^^^^^^^^^^^^^^^
  File "c:UsersMohammadvenvmybot.py", line 16, in get_chat_history
  File "c:UsersMohammadvenvmybot.py", line 16, in get_chat_history
    async for message in app.get_chat_history(int(-1002245761378)):
  File "C:UsersMohammadvenvLibsite-packagespyrogrammethodsmessagesget_chat_history.py", line 101, in get_chat_history
  File "C:UsersMohammadvenvLibsite-packagespyrogrammethodsmessagesget_chat_history.py", line 101, in get_chat_history
    messages = await get_chunk(
    messages = await get_chunk(
               ^^^^^^^^^^^^^^^^
               ^^^^^^^^^^^^^^^^
  File "C:UsersMohammadvenvLibsite-packagespyrogrammethodsmessagesget_chat_history.py", line 37, in get_chunk
  File "C:UsersMohammadvenvLibsite-packagespyrogrammethodsmessagesget_chat_history.py", line 37, in get_chunk
    peer=await client.resolve_peer(chat_id),
    peer=await client.resolve_peer(chat_id),
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UsersMohammadvenvLibsite-packagespyrogrammethodsadvancedresolve_peer.py", line 89, in resolve_peer
    peer_type = utils.get_peer_type(peer_id)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:UsersMohammadvenvLibsite-packagespyrogramutils.py", line 246, in get_peer_type
    raise ValueError(f"Peer id invalid: {peer_id}")
ValueError: Peer id invalid: -1002245761378