# Using Voilà on a Jupyter notebook with slicer

**URL:** <https://discourse.slicer.org/t/using-voila-on-a-jupyter-notebook-with-slicer/14727>\
**Category:** Development\
**Created:** [November 22, 2020, 11:42am UTC](https://discourse.slicer.org/t/using-voila-on-a-jupyter-notebook-with-slicer/14727 "2020-11-22T11:42:50Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![pierrebusson](https://avatars.discourse-cdn.com/v4/letter/p/dc4da7/32.png) [@pierrebusson](https://discourse.slicer.org/u/pierrebusson)\
**Post date:** [November 22, 2020, 11:42am UTC](https://discourse.slicer.org/t/using-voila-on-a-jupyter-notebook-with-slicer/14727/1 "2020-11-22T11:42:50Z")

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Hi,

I’m using Voilà in a server web

 ![Capture d’écran 2020-11-22 à 12.28.48](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/e/9/e946f2967ae5cc76287b6de53d44d6073fea9d25.png)  
It’s working when I use the command : “print(‘Hello world!’)”, the code is hide  
 ![Capture d’écran 2020-11-22 à 12.29.50](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/0/b/0bc9fd8ce1385244329756297dc9bb0d09ae0a05.png)  
But when I try to use Voilà with a notebook which open a SlicerApp I have an error message : ‘404: Not Found’  
 ![Capture d’écran 2020-11-22 à 12.36.22](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/3/8/38219534b0b7e569950ca802511dd362aace8e4f.png)  
 ![Capture d’écran 2020-11-22 à 12.39.31](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/4/f/4fd72a569cf0cfc5b6b709ba9feffa24c3e1c958.png)

Do you have any solution ?

Thanks in advance

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [November 22, 2020, 9:08pm UTC](https://discourse.slicer.org/t/using-voila-on-a-jupyter-notebook-with-slicer/14727/2 "2020-11-22T21:08:30Z")

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You need to setup noVNC, similarly how it is done in the slicer-notebook docker image: [SlicerDocker/slicer-notebook at master · Slicer/SlicerDocker (github.com)](https://github.com/Slicer/SlicerDocker/tree/master/slicer-notebook)

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**Author:** ![pierrebusson](https://avatars.discourse-cdn.com/v4/letter/p/dc4da7/32.png) [@pierrebusson](https://discourse.slicer.org/u/pierrebusson)\
**Post date:** [November 23, 2020, 8:53am UTC](https://discourse.slicer.org/t/using-voila-on-a-jupyter-notebook-with-slicer/14727/3 "2020-11-23T08:53:10Z")

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Thank you very much for your reply

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**Author:** ![Hugo](https://avatars.discourse-cdn.com/v4/letter/h/b38774/32.png) [@Hugo](https://discourse.slicer.org/u/Hugo)\
**Post date:** [November 23, 2020, 11:57am UTC](https://discourse.slicer.org/t/using-voila-on-a-jupyter-notebook-with-slicer/14727/4 "2020-11-23T11:57:45Z")

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Dear M.Lasso,

I’m working on the same project as Pierre Busson, I have installed noVNC and have the docker container running the Jupyter notebook. I didn’t get what do I need to do next in order to have my Jupyter Notebook on Voilà?

I really appreciated your help,

Sincerely,

Hugo

noVNC window

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/d/9/d970a2a5cebbdef9013b1fdc3ca281575f28bb4c.png)

Jupyter Notebook window

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/d/6/d6500ff175df59baf4f354f01ebaca18a4975ac3.png)

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**Author:** ![fpsiddiqui91](https://avatars.discourse-cdn.com/v4/letter/f/53a042/32.png) [@fpsiddiqui91](https://discourse.slicer.org/u/fpsiddiqui91)\
**Post date:** [March 25, 2021, 8:30am UTC](https://discourse.slicer.org/t/using-voila-on-a-jupyter-notebook-with-slicer/14727/5 "2021-03-25T08:30:51Z")

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Hi, I am also stuck in the same problem. I have my jupyter notebook working fine with binder. However, on adding Viola, it leads to Error 404

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/d/e/de87dedc70c08ecdb7248259ccaa612cb37c01f4.png)

This is how I am setting up binder with Voila

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/7/b/7b624d129af17bb3fa55e1970cd9df8d590ad105.png)

and here is the link of my repository.

> **[GitHub - FaizanSiddiqui91/slicer\_notebook\_test](https://github.com/FaizanSiddiqui91/slicer_notebook_test)**
>
> Contribute to FaizanSiddiqui91/slicer\_notebook\_test development by creating an account on GitHub.

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**Author:** ![fpsiddiqui91](https://avatars.discourse-cdn.com/v4/letter/f/53a042/32.png) [@fpsiddiqui91](https://discourse.slicer.org/u/fpsiddiqui91)\
**Post date:** [March 25, 2021, 3:49pm UTC](https://discourse.slicer.org/t/using-voila-on-a-jupyter-notebook-with-slicer/14727/6 "2021-03-25T15:49:36Z")

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Can anyone help me with this issue? thanks