ModuleNotFoundError：Jupyter Notebook 中没有名为“tensorflow”的模块

Question

I'm getting this error in my Jupyter Notebook. The complete error is bellow:

---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
 in 
      1 import numpy as np # working with data
      2 import pandas as pd
----> 3 from keras.layers.core import Dense, Activation, Dropout
      4 from keras.layers.recurrent import LSTM
      5 from keras.models import Sequential

~\AppData\Local\Programs\Python\Python37-32\lib\site-packages\keras\__init__.py in 
      1 from __future__ import absolute_import
      2 
----> 3 from . import utils
      4 from . import activations
      5 from . import applications

~\AppData\Local\Programs\Python\Python37-32\lib\site-packages\keras\utils\__init__.py in 
      4 from . import data_utils
      5 from . import io_utils
----> 6 from . import conv_utils
      7 from . import losses_utils
      8 from . import metrics_utils

~\AppData\Local\Programs\Python\Python37-32\lib\site-packages\keras\utils\conv_utils.py in 
      7 from six.moves import range
      8 import numpy as np
----> 9 from .. import backend as K
     10 
     11 

~\AppData\Local\Programs\Python\Python37-32\lib\site-packages\keras\backend\__init__.py in 
----> 1 from .load_backend import epsilon
      2 from .load_backend import set_epsilon
      3 from .load_backend import floatx
      4 from .load_backend import set_floatx
      5 from .load_backend import cast_to_floatx

~\AppData\Local\Programs\Python\Python37-32\lib\site-packages\keras\backend\load_backend.py in 
     88 elif _BACKEND == 'tensorflow':
     89     sys.stderr.write('Using TensorFlow backend.\n')
---> 90     from .tensorflow_backend import *
     91 else:
     92     # Try and load external backend.

~\AppData\Local\Programs\Python\Python37-32\lib\site-packages\keras\backend\tensorflow_backend.py in 
      3 from __future__ import print_function
      4 
----> 5 import tensorflow as tf
      6 from tensorflow.python.eager import context
      7 from tensorflow.python.framework import device as tfdev

ModuleNotFoundError: No module named 'tensorflow'

In cmd: My python version is:

C:\Users\casper>python --version
Python 3.6.5 :: Anaconda, Inc.  

Anaconda version:

C:\Users\casper>conda --version
conda 4.5.4  

In Anaconda Prompt I install Tensorflow like below:

conda create -n tensorflow python=3.6  
// CPU edition    
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple tensorflow    

In Anaconda Prompt : My Tensorflow version is:

(base) C:\Users\casper>activate tensorflow

(tensorflow) C:\Users\casper>python
Python 3.6.2 |Continuum Analytics, Inc.| (default, Jul 20 2017, 12:30:02) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import tensorflow as tf
2020-02-14 19:36:32.468120: W tensorflow/stream_executor/platform/default/dso_loader.cc:55] Could not load dynamic library 'cudart64_101.dll'; dlerror: cudart64_101.dll not found
2020-02-14 19:36:32.474896: I tensorflow/stream_executor/cuda/cudart_stub.cc:29] Ignore above cudart dlerror if you do not have a GPU set up on your machine.
>>> tf.__version__
'2.1.0'
>>> tf.__path__
['D:\\Anaconda3\\envs\\tensorflow\\lib\\site-packages\\tensorflow']  

It's really the first time I'm working with all these libraries and technologies, I lost the track, I can see all around its different Python versions, It's really messed up for me now. How could I fix it ?

Answer 1

Remember to change to the right kernel. You can do that in Jupyter Notebook, by pressing Kernel . Then select Change kernel and select your kernel.

Answer 2

Try running Anaconda as admin (right-click -> run as administrator). And try these commands as well (taken from the Anaconda Documentation):

conda create -n tf tensorflow
conda activate tf

You may need to restart you PC.