# Unable to access ipynb Server Error 500

**URL:** <https://discourse.jupyter.org/t/unable-to-access-ipynb-server-error-500/2956>\
**Category:** discuss\
**Created:** [December 26, 2019, 6:41am UTC](https://discourse.jupyter.org/t/unable-to-access-ipynb-server-error-500/2956 "2019-12-26T06:41:25Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![GirishSharma](https://avatars.discourse-cdn.com/v4/letter/g/c67d28/32.png) [@GirishSharma](https://discourse.jupyter.org/u/GirishSharma)\
**Post date:** [December 26, 2019, 6:41am UTC](https://discourse.jupyter.org/t/unable-to-access-ipynb-server-error-500/2956/1 "2019-12-26T06:41:25Z")

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I am new to this technology and environment. Here is my environment-  
OS : Ubuntu 20.04 64 bit  
I installed : sudo pip install jupyterlab  
All went fine. Now when I says jupyter notebook, browser opens but when I clicks on any ipynb file, I gets:

# 500 : Internal Server Error

Then I installed Project Jupyter through Ubuntu Softwares, it also got successfully. When I starts by :  
Click on Activities-Writes Project Jupyter and opens it - I gets a message box :

Allow opening file?

Allow snap “jupyter” to open file “/run/user/1000/snap.jupyter/jupyter/nbserver-5420-open.html”?

This dialog will close automatically after 5 minutes of inactivity.  
And when I clicks on Yes, then I am able to open the ipynb.

I dont know why I am not able to open the ipynb file by running jupyter notebook.

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**Author:** ![GirishSharma](https://avatars.discourse-cdn.com/v4/letter/g/c67d28/32.png) [@GirishSharma](https://discourse.jupyter.org/u/GirishSharma)\
**Post date:** [December 26, 2019, 8:26am UTC](https://discourse.jupyter.org/t/unable-to-access-ipynb-server-error-500/2956/2 "2019-12-26T08:26:46Z")

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I solved the issue by just :  
sudo pip3 install jupyter