Failed to import any qt binding

(zhouying) F:TensorflowProjectObjectDetection>python -m pip uninstall matplotlib
Found existing installation: matplotlib 3.2.1
Uninstalling matplotlib-3.2.1:
Would remove:
n:anaconda3installenvszhouyinglibsite-packagesmatplotlib-3.2.1-py3.6-win-amd64.egg
Proceed (y/n)? y
Successfully uninstalled matplotlib-3.2.1

(zhouying) F:TensorflowProjectObjectDetection>
(zhouying) F:TensorflowProjectObjectDetection>
(zhouying) F:TensorflowProjectObjectDetection>
(zhouying) F:TensorflowProjectObjectDetection>
(zhouying) F:TensorflowProjectObjectDetection>
(zhouying) F:TensorflowProjectObjectDetection>
(zhouying) F:TensorflowProjectObjectDetection>pip install matplotlib==2.2.2
Collecting matplotlib==2.2.2
Downloading matplotlib-2.2.2-cp36-cp36m-win_amd64.whl (8.7 MB)
|████████████████████████████████| 8.7 MB 1.3 MB/s
Requirement already satisfied: six>=1.10 in n:anaconda3installenvszhouyinglibsite-packages (from matplotlib==2.2.2) (1.14.0)
Requirement already satisfied: pyparsing!=2.0.4,!=2.1.2,!=2.1.6,>=2.0.1 in n:anaconda3installenvszhouyinglibsite-packagespyparsing-3.0.0a1-py3.6.egg (from matplotlib==2.2.2) (3.0.0a1)
Collecting pytz
Downloading pytz-2019.3-py2.py3-none-any.whl (509 kB)
|████████████████████████████████| 509 kB 6.4 MB/s
Requirement already satisfied: numpy>=1.7.1 in n:anaconda3installenvszhouyinglibsite-packages (from matplotlib==2.2.2) (1.18.2)
Requirement already satisfied: cycler>=0.10 in n:anaconda3installenvszhouyinglibsite-packagescycler-0.10.0-py3.6.egg (from matplotlib==2.2.2) (0.10.0)
Requirement already satisfied: python-dateutil>=2.1 in n:anaconda3installenvszhouyinglibsite-packagespython_dateutil-2.8.1-py3.6.egg (from matplotlib==2.2.2) (2.8.1)
Requirement already satisfied: kiwisolver>=1.0.1 in n:anaconda3installenvszhouyinglibsite-packageskiwisolver-1.2.0-py3.6-win-amd64.egg (from matplotlib==2.2.2) (1.2.0)
Installing collected packages: pytz, matplotlib
Successfully installed matplotlib-2.2.2 pytz-2019.3

(zhouying) F:TensorflowProjectObjectDetection>
(zhouying) F:TensorflowProjectObjectDetection>

再次运行