r - Error when deploying Shiny app with keras

Question

I'm writing the shinyapp with keras which can run perfectly locally. But when I planned to publish it to shinyapp.io, there was an error

Preparing to deploy application...DONE
Uploading bundle for application: 3512640...DONE
Deploying bundle: 4141903 for application: 3512640 ...
Waiting for task: 859989544
  building: Processing bundle: 4141903
  building: Parsing manifest
  building: Building image: 4712958
  building: Installing system dependencies
################################ Begin Task Log ################################ 
[2021-01-25T20:07:31.909244868+0000] Execute script: packages/build/tensorflow.sh
+ set -e
+ curl -O https://bootstrap.pypa.io/get-pip.py
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 1883k  100 1883k    0     0  4718k      0 --:--:-- --:--:-- --:--:-- 4708k
+ python get-pip.py
Traceback (most recent call last):
  File "get-pip.py", line 24226, in <module>
    main()
  File "get-pip.py", line 199, in main
    bootstrap(tmpdir=tmpdir)
  File "get-pip.py", line 82, in bootstrap
    from pip._internal.cli.main import main as pip_entry_point
  File "/tmp/tmpSAjf8y/pip.zip/pip/_internal/cli/main.py", line 60
    sys.stderr.write(f"ERROR: {exc}")
                                   ^
SyntaxError: invalid syntax
################################# End Task Log ################################# 
????: Unhandled Exception: Child Task 859989545 failed: Error building image: Build exited with non-zero status: 1
?????

Python version

> reticulate:: py_config()
python:         C:/Users/hanwe/AppData/Local/r-miniconda/envs/r-reticulate/python.exe
libpython:      C:/Users/hanwe/AppData/Local/r-miniconda/envs/r-reticulate/python36.dll
pythonhome:     C:/Users/hanwe/AppData/Local/r-miniconda/envs/r-reticulate
version:        3.6.10 |Anaconda, Inc.| (default, May  7 2020, 19:46:08) [MSC v.1916 64 bit (AMD64)]
Architecture:   64bit
numpy:          C:/Users/hanwe/AppData/Local/r-miniconda/envs/r-reticulate/Lib/site-packages/numpy
numpy_version:  1.19.1

I have tried R 4.0.2 and R 3.6.3, but both versions didn't resolve this issue. I have also added the code in .Rprofile referring to https://github.com/ranikay/shiny-reticulate-app/blob/master/.Rprofile, but it didn't work either.

question from:https://stackoverflow.com/questions/65892859/error-when-deploying-shiny-app-with-keras

Answer 1

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