VNStation2.4.9 底层接口：ctp测试，上层应用：选择“OptionMaster”，会出现下面报错信息。
Traceback (most recent call last):
File "D:\vnstudio\lib\site-packages\vnstation\cli.py", line 90, in run_trader
module = importlib.import_module(d["module"])
File "D:\vnstudio\lib\importlib_init_.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 728, in exec_module
File "<frozen importlib._bootstrap>", line 219, in call_with_frames_removed
File "D:\vnstudio\lib\site-packages\vnpy\app\option_master_init.py", line 3, in <module>
from .engine import OptionEngine, APP_NAME
File "D:\vnstudio\lib\site-packages\vnpy\app\option_master\engine.py", line 33, in <module>
from .pricing import binomial_tree_cython as binomial_tree
File "init.pxd", line 918, in init binomial_tree_cython
ValueError: numpy.ufunc size changed, may indicate binary incompatibility. Expected 216 from C header, got 192 from PyObject
