Unable to deploy a Python Shiny app to shinyapps.io although it runs locally on my computer

shiny shinyapps.io
#1

I receive the following error when I try to run the app on the terminal:

Warning: Capturing the environment using 'pip freeze'.
         Consider creating a requirements.txt file instead.

←[0mValidating server...←[0m←[32;20m [OK]
←[0m←[0mValidating app mode...←[0m←[32;20m [OK]
←[0m←[0mMaking bundle ...←[0m←[32;20m [OK]
←[0m←[0mDeploying bundle ...←[0m
Waiting for task: 1319051531
building - Processing bundle: 7467213
building - Installing files
building - Installing files
building - Installing files
←[31;20m [ERROR]: Application deployment failed with error: Unhandled Exception: Child Task 1319051533 failed: Error building image: Build exited with non-zero status: 1
←[0mError: Application deployment failed with error: Unhandled Exception: Child Task 1319051533 failed: Error building image: Build exited with non-zero status: 1

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#2

I also am experiencing this issue. I have tried a couple of the versions of Python and rsconnect-python with no success. I have tried using requirements files and and the manifest.json

#3

Hello this is Gulshan Negi
Well, I will suggest you review your commands again and then also verify your project and try again. I hope it will work for you.
Thanks

#4

Hi Gulshan,

Thank you for your suggestion, I have tried the following steps, but still have errors. @normana is also experiencing errors too. Could you please take a closer look or give it a try?

As was suggested in a warning, I created a requirements.txt file by running

pip freeze > requirements.txt

Then, as was discussed in this post with a similar error Cannot deploy python shiny app to shinyapps.io - Exception: Child Task 1234081549 failed - shiny / shinyapps.io - Posit Community (rstudio.com)

I created and used a python 3.8.13 virtual conda environment

conda create -n test_env python=3.8.13 anaconda

conda activate test_env

I also ensured I was running rsconnect 1.10.0

pip install rsconnect-python==1.10.0

The error persists and was not fixed.

Error: shinyapps.io reported an error (calling /v1/tasks/1319667213?legacy=true): Unhandled Exception: Child Task 1319667214 failed: Error building image: Build exited with non-zero status: 1

#5

I have double-checked my commands and followed the procedures as contained in the Shiny documentation. Chapter 2 Getting Started | shinyapps.io user guide (posit.co)

Could you please help?

Thank you,

Paul

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#6

I am also experimenting the exact same issue. I was thinking that it could be because my app uses yfinance package, but it does not fit in the categories of packages that does not work on shinyapps.io.
I would really appreciate your help

#7

I had some success getting my application deployed including packages like xgboost for a prediction model, plotly for a dynamic graph, boto3 and other libraries for AWS S3 connections.

I found success by first creating a project with just the bare components like the UI and plotly. I also created a requriements.txt file where said the name ie 'plotly' or 'scipy' . This deployed and then within my project the rsconnect-python json file was created.

After deploying this and being able to access and add users, I the project in my local ide to include all files and update requirements.txt.

Finally, I have a deployed application. Now i am facing an issue with storing data to SQL server when users click a particular button. I am storing the object instead of the value. could use help with this!

#8

We've recently enhanced the product so that when an error occurs at this step, rsconnect will show you the root cause error that took place on our servers. (As @normana discovered, usually it is because when we run pip to recreate your dependencies, it can't find or install some module you have installed locally.)

#9

Very Cool Feature Update! Thanks for sharing