rc = proc.poll()
if rc is not None:
raise RuntimeError("plasma_store exited unexpectedly with "
> "code %d" % (rc,))
E RuntimeError: plasma_store exited unexpectedly with code 127
opt/conda/lib/python3.6/site-packages/pyarrow-0.11.1.dev62+g669c5bca-py3.6-linux-x86_64.egg/pyarrow/plasma.py:138: RuntimeError
------------------------------------------------ Captured stderr call -------------------------------------------------
/opt/conda/lib/python3.6/site-packages/pyarrow-0.11.1.dev62+g669c5bca-py3.6-linux-x86_64.egg/pyarrow/plasma_store_server: error while loading shared libraries: libboost_system.so.1.68.0: cannot open shared object file: No such file or dir
ectory