Failed to interpret file <_io.BytesIO object at 0x7fabe124e890> as a pickle

[vincentduan]

I am a beginner with Towhee, and I am using the Towhee Built-in Pipeline to implement a video deduplication function. The source code can be found at here. I ran the following code, but encountered an error. How can I resolve it?
our main environment:

ubuntu 22.04 
towhee 1.1.3
towhee.models 1.1.3
pymilvus 2.4.8
plyvel 1.5.1

from pymilvus import connections, FieldSchema, CollectionSchema, DataType, Collection, utility
from towhee import AutoPipes, AutoConfig
import glob

connections.connect(host=IP, port='19530')

Collection('video_copy_detection').load()

search_conf = AutoConfig.load_config('video_copy_detection')
print(search_conf)
search_conf.collection = 'video_copy_detection'
search_conf.leveldb_path = 'url_vec.db'
search_conf.top_k = 5
search_conf.device = -1
search_pipe = AutoPipes.pipeline('video_copy_detection', search_conf)

path = glob.glob('./VCSL-demo/madongmei/*')

for i in path:
    print(i)
    result = search_pipe(i)
    DataCollection(result).show()

del search_pipe

exception info :

Node-kvstorage/from-leveldb-6 runs failed, error msg: Failed to interpret file <_io.BytesIO object at 0x7f6164737600> as a pickle, Traceback (most recent call last):
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/numpy/lib/npyio.py", line 441, in load
    return pickle.load(fid, **pickle_kwargs)
EOFError: Ran out of input

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

Traceback (most recent call last):
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/towhee/runtime/nodes/node.py", line 158, in _call
    return True, self._op(*inputs), None
  File "/home/ours/.towhee/operators/kvstorage/from-leveldb/versions/main/from_leveldb.py", line 22, in __call__
    vals = np.load(vals, allow_pickle=True)
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/numpy/lib/npyio.py", line 443, in load
    raise pickle.UnpicklingError(
_pickle.UnpicklingError: Failed to interpret file <_io.BytesIO object at 0x7f6164737600> as a pickle
, Traceback (most recent call last):
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/towhee/runtime/nodes/node.py", line 171, in process
    self.process_step()
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/towhee/runtime/nodes/_map.py", line 63, in process_step
    assert succ, msg
AssertionError: Failed to interpret file <_io.BytesIO object at 0x7f6164737600> as a pickle, Traceback (most recent call last):
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/numpy/lib/npyio.py", line 441, in load
    return pickle.load(fid, **pickle_kwargs)
EOFError: Ran out of input

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

Traceback (most recent call last):
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/towhee/runtime/nodes/node.py", line 158, in _call
    return True, self._op(*inputs), None
  File "/home/ours/.towhee/operators/kvstorage/from-leveldb/versions/main/from_leveldb.py", line 22, in __call__
    vals = np.load(vals, allow_pickle=True)
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/numpy/lib/npyio.py", line 443, in load
    raise pickle.UnpicklingError(
_pickle.UnpicklingError: Failed to interpret file <_io.BytesIO object at 0x7f6164737600> as a pickle


  File "/home/ours/code/neimeng-python/milvusdb_test/tutorial/tutorial_5.py", line 23, in <module>
    result = search_pipe(i)
RuntimeError: Node-kvstorage/from-leveldb-6 runs failed, error msg: Failed to interpret file <_io.BytesIO object at 0x7f6164737600> as a pickle, Traceback (most recent call last):
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/numpy/lib/npyio.py", line 441, in load
    return pickle.load(fid, **pickle_kwargs)
EOFError: Ran out of input

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

Traceback (most recent call last):
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/towhee/runtime/nodes/node.py", line 158, in _call
    return True, self._op(*inputs), None
  File "/home/ours/.towhee/operators/kvstorage/from-leveldb/versions/main/from_leveldb.py", line 22, in __call__
    vals = np.load(vals, allow_pickle=True)
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/numpy/lib/npyio.py", line 443, in load
    raise pickle.UnpicklingError(
_pickle.UnpicklingError: Failed to interpret file <_io.BytesIO object at 0x7f6164737600> as a pickle
, Traceback (most recent call last):
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/towhee/runtime/nodes/node.py", line 171, in process
    self.process_step()
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/towhee/runtime/nodes/_map.py", line 63, in process_step
    assert succ, msg
AssertionError: Failed to interpret file <_io.BytesIO object at 0x7f6164737600> as a pickle, Traceback (most recent call last):
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/numpy/lib/npyio.py", line 441, in load
    return pickle.load(fid, **pickle_kwargs)
EOFError: Ran out of input

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

Traceback (most recent call last):
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/towhee/runtime/nodes/node.py", line 158, in _call
    return True, self._op(*inputs), None
  File "/home/ours/.towhee/operators/kvstorage/from-leveldb/versions/main/from_leveldb.py", line 22, in __call__
    vals = np.load(vals, allow_pickle=True)
  File "/home/ours/anaconda3/envs/ours_py3.10_milvus/lib/python3.10/site-packages/numpy/lib/npyio.py", line 443, in load
    raise pickle.UnpicklingError(
_pickle.UnpicklingError: Failed to interpret file <_io.BytesIO object at 0x7f6164737600> as a pickle

[Liqueur0206]

do you solve it？ I am facing the same problem