Error: Installation of TensorFlow not found in RStudio

[Konar]

Tyring to build some neural networks using Keras from the 'Deep Learning with R' book, I keep encountering the same error that TensorFlow has not been found in my RStudio session. Looked up similar problemshoot (Python module tensorflow was not found. (Similar to issue #144)) but it doesn't solve my error.

Trying to execute this code:

model <- keras_model_sequential() %>%
layer_dense(units = 25, input_shape = c(468)) %>%
layer_dense(units = 12, activation = "softmax")

Followed these steps for using the conda environment that already has TensorFlow:

More info using
reticulate::conda_version()
sessionInfo()

and library(tensorflow)
use_condaenv("tf")
sess <- tf$Session()

I don't understand why this is not working. Hopefully somebody can help me out with this!?

Cheers

[phil_hummel]

I installed Keras/TF on Rstudio Cloud a couple of weeks ago but that is a Linux OS. Still, there is a note in the Keras help about installing on windows that might help:

Keras and TensorFlow will be installed into an "r-tensorflow" virtual or conda environment. Note that "virtualenv" is not available on Windows (as this isn't supported by TensorFlow).

Here is what I used. I used the specific version of Tensorflow that is compatible with the newest keras package.

install.packages("keras")
install_keras(Tensorflow = "1.13.1",
restart_session = FALSE
)

[Konar]

Hi Phil,

Thanks for the info. I'm thinking about switching o Ubuntu as Linux distribution as OS, but I wonder if there's anything possible on Keras/Tensorflow installation using Windows 10 before making the jump to Ubuntu.

Hopefully anyone has solved this situation using Windows 10!?

Cheers

[Konar]

Actually solved this one myself by using the Conda environment ("r-reticulate") that the R-package "reticulate" made.

Code:

install.packages("remotes")
remotes::install_github("rstudio/tensorflow")
library(tensorflow)
install_tensorflow(version = "2.0.0b1", method = "conda", envname = "r-reticulate")
library(keras)