Error: Installation of TensorFlow not found

[Stat45]

Dear all,

I've tried a whole day installing keras and tensorflow on my computer yesterday (and actually on a second PC), read all (at least many) posts reporting the same problem but none of them helped me to solve my issue.

Following the tutorial on my PC (Win10, R-studio version 4.0.2, R version 3.5.1 but also 4.0.2; installing miniconda but also Anaconda3), I invariably received the following error message (although of course I had already used the install_tensorflow function that confirmed the installation was complete) :

tf$constant("Hellow Tensorflow")
Error: Installation of TensorFlow not found.

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

You can install TensorFlow using the install_tensorflow() function.

Would you have any idea for fixing the bug?

Thanks!

[nagdevAmruthnath]

Here are a few things you could try

1. See if python.exe is in you path
2. Be sure you installed python 3.x
3. Keras uses reticulate to connect to python. So mention the path to python specifically

If none of these work, install docker and just run rocker's ML container with Rstudio. That will reduce all the hassle. rocker/ml

[max-poltora]

Here are a few things you could try

1. See if python.exe is in you path
2. Be sure you installed python 3.x
3. Keras uses reticulate to connect to python. So mention the path to python specifically

I've made sure, that C:/Users/user/anaconda3/python.exe is in the PATH, but the error is still there.

[max-poltora]

Dear all, I have found the solution in this branch. The method works in my case, but I have to do manipulations with installation every time I start new R session. In summary I do the following steps:

library(keras)
use_condaenv("tf")
library(reticulate)
install_keras(method = c("conda"), conda = "auto", version = "default", tensorflow = "gpu")

After that I load Anaconda prompt and run:

conda activate tf
conda create -y --name tf tensorflow-gpu python=3.6.8
conda activate tf

Then, when I get back to my R session I get the following output:
tensorflow::tf_config()

TensorFlow v2.1.0 (C:\Users\user\ANACON~1\envs\tf\lib\site-packages\tensorflow_init_.p)
Python v3.6 (C:/Users/user/anaconda3/envs/tf/python.exe)

keras:::keras_version()

[1] ‘2.2.4’

reticulate::py_config()

python: C:/Users/user/anaconda3/envs/tf/python.exe
libpython: C:/Users/user/anaconda3/envs/tf/python36.dll
pythonhome: C:/Users/user/anaconda3/envs/tf
version: 3.6.8 |Anaconda, Inc.| (default, Feb 21 2019, 18:30:04) [MSC v.1916 64 bit (AMD64)]
Architecture: 64bit
numpy: C:/Users/user/anaconda3/envs/tf/Lib/site-packages/numpy
numpy_version: 1.19.2
tensorflow: C:\Users\user\ANACON~1\envs\tf\lib\site-packages\tensorflow_init_.p

python versions found:
C:/Users/user/anaconda3/envs/tf/python.exe
C:/Users/user/anaconda3/python.exe

Hope this helps.

[ykocaturk]

There should be no selections in the Python section in the Tools menu Global options tab.