'fbx.so: undefined symbol: xmlFree

Build FBX python bindings on Ubuntu 20.10 with Python3.8 got error:

fbx.so: undefined symbol: xmlFree

I have files generated in side build/Distro/site-packages/fbx:

ls build/Distrib/site-packages/fbx
FbxCommon.py  fbx.so  sip.so

I copied all files into

cp -r build/Distrib/site-packages/fbx/* /home/jintian/anaconda3/lib/python3.8/site-packages/

what have I miss? Why got that error??

autodesk fbx

Sources

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Solution	Source