**When I try to use Keras in my Conda environment I get this error:**

```
pr_curve_pb = _pr_curve_summary.pb attributeerror: 'module' object has no attribute 'pb'

```

**Error traces:**

```
File "/anaconda3/envs/tensorflow/lib/python3.6/site-packages/keras/init.py", line 3, in 
from . import utils
File "/anaconda3/envs/tensorflow/lib/python3.6/site-packages/keras/utils/init.py", line 6, in 
from . import conv_utils
File "/anaconda3/envs/tensorflow/lib/python3.6/site-packages/keras/utils/conv_utils.py", line 9, in 
from .. import backend as K
File "/anaconda3/envs/tensorflow/lib/python3.6/site-packages/keras/backend/init.py", line 1, in 
from .load_backend import epsilon
File "/anaconda3/envs/tensorflow/lib/python3.6/site-packages/keras/backend/load_backend.py", line 90, in 
from .tensorflow_backend import *
File "/anaconda3/envs/tensorflow/lib/python3.6/site-packages/keras/backend/tensorflow_backend.py", line 5, in 
import tensorflow as tf
File "/anaconda3/envs/tensorflow/lib/python3.6/site-packages/tensorflow/init.py", line 98, in 
from tensorflow_core import *
File "/anaconda3/envs/tensorflow/lib/python3.6/site-packages/tensorflow_core/init.py", line 45, in 
from . _api.v2 import compat
File "/anaconda3/envs/tensorflow/lib/python3.6/site-packages/tensorflow_core/_api/v2/compat/init.py", line 24, in 
from . import v2
File "/anaconda3/envs/tensorflow/lib/python3.6/site-packages/tensorflow_core/_api/v2/compat/v2/init.py", line 32, in 
from . import compat
File "/anaconda3/envs/tensorflow/lib/python3.6/site-packages/tensorflow_core/_api/v2/compat/v2/compat/init.py", line 23, in 
from tensorflow._api.v2.compat import v1
File "/anaconda3/envs/tensorflow/lib/python3.6/site-packages/tensorflow_core/_api/v2/compat/init.py", line 24, in 
from . import v2
File "/anaconda3/envs/tensorflow/lib/python3.6/site-packages/tensorflow_core/_api/v2/compat/v2/init.py", line 314, in 
from tensorboard.summary._tf import summary
File "/anaconda3/envs/tensorflow/lib/python3.6/site-packages/tensorboard/summary/init.py", line 25, in 
from tensorboard.summary import v1
File "/anaconda3/envs/tensorflow/lib/python3.6/site-packages/tensorboard/summary/v1.py", line 46, in 
pr_curve_pb = _pr_curve_summary.pb
AttributeError: module 'tensorboard.plugins.pr_curve.summary' has no attribute 'pb'

```

I tried to uninstall and install again but did not work.