问题
I'm trying to install deep learning package keras on RStudio using this website. I installed keras using
install.packages("keras")
library(keras)
install_keras()
but when I tried to open the MNIST dataset
mnist <- dataset_mnist()
I keep getting the error
Error: ModuleNotFoundError: No module named 'absl'
I thought keras installed tensorflow but do I need to install tensorflow separately?
回答1:
I had the same problem and it is solved by installing the package in two steps:
install keras: install.packages("keras")
keras::install_keras()
There you go!
回答2:
If you follow the TUT and still got error, try running py_config() and check the python and libpython if it is pointing to an r-tensorflow environment. If not, best to try manually install keras in your manually set up conda environment.
Step 1: Install keras in your R just like in the link above.
#Open rstudio and run the following command
devtools::install_github("rstudio/keras")
#Don't close rstudio after running this, okay?
Step 2: Manually install keras (and tensorflow) in your machine ##. When i say “manual” it means using python specifically through conda. Here’s the link I followed: https://medium.com/i-want-to-be-the-very-best/installing-keras-tensorflow-using-anaconda-for-machine-learning-44ab28ff39cb .
In summary, the link will teach you to install anaconda, create an environment and install necessary libraries. Just follow it. I named my environment as “r-tensorflow” because that is the name of the environment that the install_keras() in R will do :)
Step 3: Point rstudio to use the python in your newly created environment using use_python() function
Open your rstudio (if you close it after following step 1) and type the following code
library(keras)
library(reticulate)
# in case you run into error run this : reticulate::py_discover_config("keras")
use_python("<yourpath>/Anaconda3/envs/r-tensorflow/Scripts/python.exe")
# change <yourpath> approriately
# write all the codes for building model in keras (or tensorflow) e.g. mnist<-dataset_mnist()
Important note on Step 3: If you still got the "not found module" after following step 3, you must start a new fresh R session and ensure to delete the workspace (.RData) because more likely your current script will still use the old python configuration though you used use_python
回答3:
Please install "reticulate" library using command install.packages("reticulate") and then load using library(reticulate)
then install absl using command
conda_install('r-tensorflow','absl-py')
来源：https://stackoverflow.com/questions/49684605/how-to-install-package-keras-in-r