error import fluid enviroment

[fokx]

When I import fluid, it said spiral/spiral/environments/pyfluid.cpython-36m-x86_64-linux-gnu.so: undefined symbol: eglGetPlatformDisplayEXT The Jupyter notebook traceback is like this:

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ImportError Traceback (most recent call last) in 10 import spiral.agents.default as default_agent 11 import spiral.agents.utils as agent_utils ---> 12 from spiral.environments import fluid 13 from spiral.environments import libmypaint 14

~/py/spiral/spiral/environments/fluid.py in 31 from spiral.environments import utils 32 from spiral.environments import config_pb2 ---> 33 from spiral.environments import pyfluid 34 35

ImportError: /home/liuqy/py/spiral/spiral/environments/pyfluid.cpython-36m-x86_64-linux-gnu.so: undefined symbol: eglGetPlatformDisplayEXT