ImportError: /3rd-party/opencv-2.4.13/build/lib/libopencv_ml.so.2.4: undefined symbol: _ZN2cv13AlgorithmInfo8addParamERNS_9AlgorithmEPKcRibMS1_FivEMS1_FviERKSs

[jasonseu]

When I run python examples/classify_video.py --use_flow data/plastering.avi, I got following error:

Traceback (most recent call last):
File "examples/classify_video.py", line 17, in
from pyActionRec.action_classifier import ActionClassifier
File "/home/user/anet2016-cuhk/pyActionRec/action_classifier.py", line 3, in
from action_flow import FlowExtractor
File "/home/user/anet2016-cuhk/pyActionRec/action_flow.py", line 7, in
from libpydenseflow import TVL1FlowExtractor
ImportError: /home/user/anet2016-cuhk/3rd-party/opencv-2.4.13/build/lib/libopencv_ml.so.2.4: undefined symbol: _ZN2cv13AlgorithmInfo8addParamERNS_9AlgorithmEPKcRibMS1_FivEMS1_FviERKSs

Is there anyone can help me, thanks very much!