Installing Keras and Tensorflow

Hello. I’m trying to install keras and tensorflow packages in R, but everytime I do this I experience problems and difficulties and,finally, fail.

First, I do: install.packages ("keras")

I get:

`Installing package into ‘C:/Users/user/Documents/R/win-library/4.0’
(as ‘lib’ is unspecified)
trying URL 'https://cran.rstudio.com/bin/windows/contrib/4.0/keras_2.3.0.0.zip'
Content type 'application/zip' length 2488234 bytes (2.4 MB)
downloaded 2.4 MB

package ‘keras’ successfully unpacked and MD5 sums checked

The downloaded binary packages are in
	C:\Users\user\AppData\Local\Temp\Rtmp69aGND\downloaded_packages`

Second, library(keras)

Third, install_keras()

After this I usually get the following:

Collecting package metadata (current_repodata.json): ...working... done
Solving environment: ...working... done

# All requested packages already installed.

Requirement already up-to-date: tensorflow==2.2.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (2.2.0)
Requirement already up-to-date: keras in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (2.4.3)
Requirement already up-to-date: tensorflow-hub in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (0.9.0)
Requirement already up-to-date: h5py in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (2.10.0)
Requirement already up-to-date: pyyaml==3.12 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (3.12)
Requirement already up-to-date: requests in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (2.24.0)
Requirement already up-to-date: Pillow in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (7.2.0)
Collecting scipy
  Using cached scipy-1.5.2-cp36-cp36m-win_amd64.whl (31.2 MB)
Requirement already satisfied, skipping upgrade: keras-preprocessing>=1.1.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (1.1.2)
Requirement already satisfied, skipping upgrade: grpcio>=1.8.6 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (1.32.0)
Requirement already satisfied, skipping upgrade: protobuf>=3.8.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (3.13.0)
Requirement already satisfied, skipping upgrade: termcolor>=1.1.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (1.1.0)
Requirement already satisfied, skipping upgrade: tensorboard<2.3.0,>=2.2.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (2.2.2)
Requirement already satisfied, skipping upgrade: numpy<2.0,>=1.16.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (1.19.1)
Requirement already satisfied, skipping upgrade: google-pasta>=0.1.8 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (0.2.0)
Requirement already satisfied, skipping upgrade: wrapt>=1.11.1 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (1.12.1)
Requirement already satisfied, skipping upgrade: astunparse==1.6.3 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (1.6.3)
Requirement already satisfied, skipping upgrade: absl-py>=0.7.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (0.10.0)
Requirement already satisfied, skipping upgrade: gast==0.3.3 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (0.3.3)
Requirement already satisfied, skipping upgrade: six>=1.12.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (1.15.0)
Requirement already satisfied, skipping upgrade: wheel>=0.26; python_version >= "3" in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (0.35.1)
Requirement already satisfied, skipping upgrade: tensorflow-estimator<2.3.0,>=2.2.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (2.2.0)
Requirement already satisfied, skipping upgrade: opt-einsum>=2.3.2 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (3.3.0)
Requirement already satisfied, skipping upgrade: chardet<4,>=3.0.2 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from requests) (3.0.4)
Requirement already satisfied, skipping upgrade: idna<3,>=2.5 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from requests) (2.10)
Requirement already satisfied, skipping upgrade: urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from requests) (1.25.10)
Requirement already satisfied, skipping upgrade: certifi>=2017.4.17 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from requests) (2020.6.20)
Requirement already satisfied, skipping upgrade: setuptools in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from protobuf>=3.8.0->tensorflow==2.2.0) (49.6.0.post20200917)
Requirement already satisfied, skipping upgrade: werkzeug>=0.11.15 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (1.0.1)
Requirement already satisfied, skipping upgrade: markdown>=2.6.8 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (3.2.2)
Requirement already satisfied, skipping upgrade: google-auth<2,>=1.6.3 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (1.22.0)
Requirement already satisfied, skipping upgrade: tensorboard-plugin-wit>=1.6.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (1.7.0)
Requirement already satisfied, skipping upgrade: google-auth-oauthlib<0.5,>=0.4.1 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (0.4.1)
Requirement already satisfied, skipping upgrade: importlib-metadata; python_version < "3.8" in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from markdown>=2.6.8->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (2.0.0)
Requirement already satisfied, skipping upgrade: pyasn1-modules>=0.2.1 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (0.2.8)
Requirement already satisfied, skipping upgrade: rsa<5,>=3.1.4; python_version >= "3.5" in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (4.6)
Requirement already satisfied, skipping upgrade: cachetools<5.0,>=2.0.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (4.1.1)
Requirement already satisfied, skipping upgrade: aiohttp<4.0.0dev,>=3.6.2; python_version >= "3.6" in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (3.6.2)
Requirement already satisfied, skipping upgrade: requests-oauthlib>=0.7.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from google-auth-oauthlib<0.5,>=0.4.1->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (1.3.0)
Requirement already satisfied, skipping upgrade: zipp>=0.5 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from importlib-metadata; python_version < "3.8"->markdown>=2.6.8->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (3.2.0)
Requirement already satisfied, skipping upgrade: pyasn1<0.5.0,>=0.4.6 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from pyasn1-modules>=0.2.1->google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (0.4.8)
Requirement already satisfied, skipping upgrade: attrs>=17.3.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from aiohttp<4.0.0dev,>=3.6.2; python_version >= "3.6"->google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (20.2.0)
Requirement already satisfied, skipping upgrade: async-timeout<4.0,>=3.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from aiohttp<4.0.0dev,>=3.6.2; python_version >= "3.6"->google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (3.0.1)
Requirement already satisfied, skipping upgrade: yarl<2.0,>=1.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from aiohttp<4.0.0dev,>=3.6.2; python_version >= "3.6"->google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (1.6.0)
Requirement already satisfied, skipping upgrade: multidict<5.0,>=4.5 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from aiohttp<4.0.0dev,>=3.6.2; python_version >= "3.6"->google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (4.7.6)
Requirement already satisfied, skipping upgrade: typing-extensions>=3.6.5; python_version < "3.7" in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from aiohttp<4.0.0dev,>=3.6.2; python_version >= "3.6"->google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (3.7.4.3)
Requirement already satisfied, skipping upgrade: idna-ssl>=1.0; python_version < "3.7" in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from aiohttp<4.0.0dev,>=3.6.2; python_version >= "3.6"->google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (1.1.0)
Requirement already satisfied, skipping upgrade: oauthlib>=3.0.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from requests-oauthlib>=0.7.0->google-auth-oauthlib<0.5,>=0.4.1->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (3.1.0)
Installing collected packages: scipy
  Attempting uninstall: scipy
    Found existing installation: scipy 1.4.1
    Uninstalling scipy-1.4.1:
      Successfully uninstalled scipy-1.4.1
ERROR: After October 2020 you may experience errors when installing or updating packages. This is because pip will change the way that it resolves dependency conflicts.

We recommend you use --use-feature=2020-resolver to test your packages with the new resolver before it becomes the default.

tensorflow 2.2.0 requires scipy==1.4.1; python_version >= "3", but you'll have scipy 1.5.2 which is incompatible.
Successfully installed scipy-1.5.2

Installation complete.

But when I type is_keras_available() I always get FALSE .

Moreover, when I try to do to_categorical(0:3) I always get:

Error: Installation of TensorFlow not found.

Python environments searched for 'tensorflow' package:
 C:\Users\user\AppData\Local\r-miniconda\envs\r-reticulate\python.exe

You can install TensorFlow using the install_tensorflow() function.

So, I start installing tensorflow :

Installing package into ‘C:/Users/user/Documents/R/win-library/4.0’
(as ‘lib’ is unspecified)
trying URL 'https://cran.rstudio.com/bin/windows/contrib/4.0/tensorflow_2.2.0.zip'
Content type 'application/zip' length 144925 bytes (141 KB)
downloaded 141 KB

package ‘tensorflow’ successfully unpacked and MD5 sums checked

The downloaded binary packages are in
	C:\Users\user\AppData\Local\Temp\Rtmp4calkb\downloaded_packages

Then library(tensorflow) and install_tensorflow() :

Collecting package metadata (current_repodata.json): ...working... done
Solving environment: ...working... done

# All requested packages already installed.

Requirement already up-to-date: tensorflow==2.2.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (2.2.0)
Requirement already satisfied, skipping upgrade: protobuf>=3.8.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (3.13.0)
Requirement already satisfied, skipping upgrade: opt-einsum>=2.3.2 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (3.3.0)
Collecting scipy==1.4.1; python_version >= "3"
  Using cached scipy-1.4.1-cp36-cp36m-win_amd64.whl (30.8 MB)
Requirement already satisfied, skipping upgrade: numpy<2.0,>=1.16.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (1.19.1)
Requirement already satisfied, skipping upgrade: gast==0.3.3 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (0.3.3)
Requirement already satisfied, skipping upgrade: absl-py>=0.7.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (0.10.0)
Requirement already satisfied, skipping upgrade: tensorboard<2.3.0,>=2.2.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (2.2.2)
Requirement already satisfied, skipping upgrade: grpcio>=1.8.6 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (1.32.0)
Requirement already satisfied, skipping upgrade: wheel>=0.26; python_version >= "3" in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (0.35.1)
Requirement already satisfied, skipping upgrade: tensorflow-estimator<2.3.0,>=2.2.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (2.2.0)
Requirement already satisfied, skipping upgrade: astunparse==1.6.3 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (1.6.3)
Requirement already satisfied, skipping upgrade: six>=1.12.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (1.15.0)
Requirement already satisfied, skipping upgrade: keras-preprocessing>=1.1.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (1.1.2)
Requirement already satisfied, skipping upgrade: wrapt>=1.11.1 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (1.12.1)
Requirement already satisfied, skipping upgrade: termcolor>=1.1.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (1.1.0)
Requirement already satisfied, skipping upgrade: google-pasta>=0.1.8 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (0.2.0)
Requirement already satisfied, skipping upgrade: h5py<2.11.0,>=2.10.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorflow==2.2.0) (2.10.0)
Requirement already satisfied, skipping upgrade: setuptools in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from protobuf>=3.8.0->tensorflow==2.2.0) (49.6.0.post20200917)
Requirement already satisfied, skipping upgrade: google-auth<2,>=1.6.3 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (1.22.0)
Requirement already satisfied, skipping upgrade: markdown>=2.6.8 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (3.2.2)
Requirement already satisfied, skipping upgrade: tensorboard-plugin-wit>=1.6.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (1.7.0)
Requirement already satisfied, skipping upgrade: werkzeug>=0.11.15 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (1.0.1)
Requirement already satisfied, skipping upgrade: google-auth-oauthlib<0.5,>=0.4.1 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (0.4.1)
Requirement already satisfied, skipping upgrade: requests<3,>=2.21.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (2.24.0)
Requirement already satisfied, skipping upgrade: aiohttp<4.0.0dev,>=3.6.2; python_version >= "3.6" in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (3.6.2)
Requirement already satisfied, skipping upgrade: rsa<5,>=3.1.4; python_version >= "3.5" in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (4.6)
Requirement already satisfied, skipping upgrade: pyasn1-modules>=0.2.1 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (0.2.8)
Requirement already satisfied, skipping upgrade: cachetools<5.0,>=2.0.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (4.1.1)
Requirement already satisfied, skipping upgrade: importlib-metadata; python_version < "3.8" in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from markdown>=2.6.8->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (2.0.0)
Requirement already satisfied, skipping upgrade: requests-oauthlib>=0.7.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from google-auth-oauthlib<0.5,>=0.4.1->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (1.3.0)
Requirement already satisfied, skipping upgrade: idna<3,>=2.5 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from requests<3,>=2.21.0->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (2.10)
Requirement already satisfied, skipping upgrade: chardet<4,>=3.0.2 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from requests<3,>=2.21.0->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (3.0.4)
Requirement already satisfied, skipping upgrade: urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from requests<3,>=2.21.0->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (1.25.10)
Requirement already satisfied, skipping upgrade: certifi>=2017.4.17 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from requests<3,>=2.21.0->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (2020.6.20)
Requirement already satisfied, skipping upgrade: idna-ssl>=1.0; python_version < "3.7" in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from aiohttp<4.0.0dev,>=3.6.2; python_version >= "3.6"->google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (1.1.0)
Requirement already satisfied, skipping upgrade: attrs>=17.3.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from aiohttp<4.0.0dev,>=3.6.2; python_version >= "3.6"->google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (20.2.0)
Requirement already satisfied, skipping upgrade: yarl<2.0,>=1.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from aiohttp<4.0.0dev,>=3.6.2; python_version >= "3.6"->google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (1.6.0)
Requirement already satisfied, skipping upgrade: multidict<5.0,>=4.5 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from aiohttp<4.0.0dev,>=3.6.2; python_version >= "3.6"->google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (4.7.6)
Requirement already satisfied, skipping upgrade: typing-extensions>=3.6.5; python_version < "3.7" in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from aiohttp<4.0.0dev,>=3.6.2; python_version >= "3.6"->google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (3.7.4.3)
Requirement already satisfied, skipping upgrade: async-timeout<4.0,>=3.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from aiohttp<4.0.0dev,>=3.6.2; python_version >= "3.6"->google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (3.0.1)
Requirement already satisfied, skipping upgrade: pyasn1>=0.1.3 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from rsa<5,>=3.1.4; python_version >= "3.5"->google-auth<2,>=1.6.3->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (0.4.8)
Requirement already satisfied, skipping upgrade: zipp>=0.5 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from importlib-metadata; python_version < "3.8"->markdown>=2.6.8->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (3.2.0)
Requirement already satisfied, skipping upgrade: oauthlib>=3.0.0 in c:\users\user\appdata\local\r-mini~1\envs\r-reti~1\lib\site-packages (from requests-oauthlib>=0.7.0->google-auth-oauthlib<0.5,>=0.4.1->tensorboard<2.3.0,>=2.2.0->tensorflow==2.2.0) (3.1.0)
Installing collected packages: scipy
  Attempting uninstall: scipy
    Found existing installation: scipy 1.5.2
    Uninstalling scipy-1.5.2:
      Successfully uninstalled scipy-1.5.2
Successfully installed scipy-1.4.1

Installation complete.

Then I again try to_categorical(0:3) and receive:

Error: Installation of TensorFlow not found.

Python environments searched for 'tensorflow' package:
 C:\Users\user\AppData\Local\r-miniconda\envs\r-reticulate\python.exe

You can install TensorFlow using the install_tensorflow() function.

Hovewer, system has already notified me about succesful tensorflow installation.

Could you, please , help me with this problem? I’ve been struggling with it for several days and haven’t found any full solution on any web source.