UnicodeDecodeError

I have install gdbgui through pip
when open gdbgui in terminal,it dosen't work

File "/anaconda/bin/gdbgui", line 7, in
from gdbgui.backend import main
File "/anaconda/lib/python3.6/site-packages/gdbgui/backend.py", line 30, in
from flask_socketio import SocketIO, emit
File "/anaconda/lib/python3.6/site-packages/flask_socketio/__init__.py", line 7, in
from socketio import socketio_manage
File "/anaconda/lib/python3.6/site-packages/socketio/__init__.py", line 8, in
from .zmq_manager import ZmqManager
File "/anaconda/lib/python3.6/site-packages/socketio/zmq_manager.py", line 5, in
import eventlet.green.zmq as zmq
File "/anaconda/lib/python3.6/site-packages/eventlet/__init__.py", line 10, in
from eventlet import convenience
File "/anaconda/lib/python3.6/site-packages/eventlet/convenience.py", line 6, in
from eventlet.green import socket
File "/anaconda/lib/python3.6/site-packages/eventlet/green/socket.py", line 21, in
from eventlet.support import greendns
File "/anaconda/lib/python3.6/site-packages/eventlet/support/greendns.py", line 390, in
resolver = ResolverProxy(hosts_resolver=HostsResolver())
File "/anaconda/lib/python3.6/site-packages/eventlet/support/greendns.py", line 171, in __init__
self._load()
File "/anaconda/lib/python3.6/site-packages/eventlet/support/greendns.py", line 198, in _load
lines = self._readlines()
File "/anaconda/lib/python3.6/site-packages/eventlet/support/greendns.py", line 184, in _readlines
for line in fp:
File "/anaconda/lib/python3.6/codecs.py", line 321, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xa1 in position 5518: invalid start byte

pip freeze output

anaconda-client==1.6.5
anaconda-navigator==1.6.8
anaconda-project==0.8.0
appnope==0.1.0
appscript==1.0.1
asn1crypto==0.22.0
astroid==1.5.3
astropy==2.0.2
autopep8==1.3.2
Babel==2.5.0
backports.shutil-get-terminal-size==1.0.0
beautifulsoup4==4.6.0
bitarray==0.8.1
bkcharts==0.2
blaze==0.11.3
bleach==2.0.0
bokeh==0.12.7
boto==2.48.0
Bottleneck==1.2.1
certifi==2017.7.27.1
cffi==1.10.0
chardet==3.0.4
click==6.7
cloudpickle==0.4.0
clyent==1.2.2
colorama==0.3.9
conda==4.3.30
contextlib2==0.5.5
cryptography==2.0.3
cycler==0.10.0
Cython==0.26.1
cytoolz==0.8.2
dask==0.15.2
datashape==0.5.4
decorator==4.1.2
distributed==1.18.3
docutils==0.14
entrypoints==0.2.3
enum-compat==0.0.2
et-xmlfile==1.0.1
eventlet==0.21.0
fastcache==1.0.2
filelock==2.0.12
flake8==3.3.0
Flask==0.12.2
Flask-Cors==3.0.3
Flask-SocketIO==2.9.2
gdbgui==0.8.0.3
gevent==1.2.2
glob2==0.5
glueviz==0.9.1
gmpy2==2.0.8
greenlet==0.4.12
h5py==2.7.0
heapdict==1.0.0
html5lib==0.999999999
idna==2.6
imageio==2.2.0
imagesize==0.7.1
ipykernel==4.6.1
ipython==6.1.0
ipython-genutils==0.2.0
ipywidgets==7.0.0
isort==4.2.15
itsdangerous==0.24
jdcal==1.3
jedi==0.10.2
Jinja2==2.10
jsonschema==2.6.0
jupyter-client==5.1.0
jupyter-console==5.2.0
jupyter-core==4.3.0
jupyterlab==0.27.0
jupyterlab-launcher==0.4.0
lazy-object-proxy==1.3.1
llvmlite==0.20.0
locket==0.2.0
lxml==3.8.0
Markdown==2.6.9
MarkupSafe==1.0
matplotlib==2.0.2
mccabe==0.6.1
mistune==0.7.4
mpmath==0.19
msgpack-python==0.4.8
multipledispatch==0.4.9
navigator-updater==0.1.0
nbconvert==5.3.1
nbformat==4.4.0
networkx==1.11
nltk==3.2.4
nose==1.3.7
notebook==5.0.0
numba==0.35.0+6.gaa35fb1
numexpr==2.6.2
numpy==1.13.1
numpydoc==0.7.0
odo==0.5.1
olefile==0.44
openpyxl==2.4.8
packaging==16.8
pandas==0.20.3
pandocfilters==1.4.2
partd==0.3.8
path.py==10.3.1
pathlib2==2.3.0
patsy==0.4.1
pep8==1.7.0
pexpect==4.2.1
pickleshare==0.7.4
Pillow==4.2.1
pkginfo==1.4.1
ply==3.10
prompt-toolkit==1.0.15
protobuf==3.4.0
psutil==5.2.2
ptyprocess==0.5.2
py==1.4.34
pycodestyle==2.3.1
pycosat==0.6.2
pycparser==2.18
pycrypto==2.6.1
pycurl==7.43.0
pyflakes==1.5.0
pygdbmi==0.7.4.3
Pygments==2.2.0
pylint==1.7.2
pyodbc==4.0.17
pyOpenSSL==17.2.0
pyparsing==2.2.0
pypugjs==4.2.2
PySocks==1.6.7
pytest==3.2.1
python-dateutil==2.6.1
python-engineio==1.7.0
python-socketio==1.8.1
pytz==2017.2
PyWavelets==0.5.2
PyYAML==3.12
pyzmq==16.0.2
QtAwesome==0.4.4
qtconsole==4.3.1
QtPy==1.3.1
requests==2.18.4
rope==0.10.5
ruamel-yaml==0.11.14
scikit-image==0.13.0
scikit-learn==0.19.0
scipy==0.19.1
seaborn==0.8
simplegeneric==0.8.1
singledispatch==3.4.0.3
six==1.11.0
snowballstemmer==1.2.1
sortedcollections==0.5.3
sortedcontainers==1.5.7
Sphinx==1.6.3
sphinxcontrib-websupport==1.0.1
spyder==3.2.3
SQLAlchemy==1.1.13
statsmodels==0.8.0
sympy==1.1.1
tables==3.4.2
tblib==1.3.2
tensorflow==1.3.0
tensorflow-tensorboard==0.1.6
terminado==0.6
testpath==0.3.1
toolz==0.8.2
tornado==4.5.2
traitlets==4.3.2
typing==3.6.2
unicodecsv==0.14.1
Unidecode==0.4.21
urllib3==1.22
wcwidth==0.1.7
webencodings==0.5.1
Werkzeug==0.12.2
widgetsnbextension==3.0.2
wrapt==1.10.11
xlrd==1.1.0
XlsxWriter==0.9.8
xlwings==0.11.4
xlwt==1.2.0
zict==0.1.2

when check the gdbgui version,i get the same info as the former
File "/anaconda/bin/gdbgui", line 7, in
from gdbgui.backend import main
File "/anaconda/lib/python3.6/site-packages/gdbgui/backend.py", line 30, in
from flask_socketio import SocketIO, emit
File "/anaconda/lib/python3.6/site-packages/flask_socketio/__init__.py", line 7, in
from socketio import socketio_manage
File "/anaconda/lib/python3.6/site-packages/socketio/__init__.py", line 8, in
from .zmq_manager import ZmqManager
File "/anaconda/lib/python3.6/site-packages/socketio/zmq_manager.py", line 5, in
import eventlet.green.zmq as zmq
File "/anaconda/lib/python3.6/site-packages/eventlet/__init__.py", line 10, in
from eventlet import convenience
File "/anaconda/lib/python3.6/site-packages/eventlet/convenience.py", line 6, in
from eventlet.green import socket
File "/anaconda/lib/python3.6/site-packages/eventlet/green/socket.py", line 21, in
from eventlet.support import greendns
File "/anaconda/lib/python3.6/site-packages/eventlet/support/greendns.py", line 390, in
resolver = ResolverProxy(hosts_resolver=HostsResolver())
File "/anaconda/lib/python3.6/site-packages/eventlet/support/greendns.py", line 171, in __init__
self._load()
File "/anaconda/lib/python3.6/site-packages/eventlet/support/greendns.py", line 198, in _load
lines = self._readlines()
File "/anaconda/lib/python3.6/site-packages/eventlet/support/greendns.py", line 184, in _readlines
for line in fp:
File "/anaconda/lib/python3.6/codecs.py", line 321, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xa1 in position 5518: invalid start byte

gdb version

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I'm use OS X EI Caption 10.11.6
and Google Chrome

anyone get some ideas?