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:

---

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