Why am I getting a 404 error when trying to open a Jupyter Notebook?

Quick overview

A 404 error is a standard HTTP status code that means the page you were trying to reach on a website couldn't be found on their server. In the context of Jupyter Notebook, this error could occur due to several reasons such as the notebook you're trying to open doesn't exist, the server is not running, or there's an issue with the URL. Jupyter Notebook is an open-source web application that allows you to create and share documents that contain live code, equations, visualizations, and narrative text.

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Why am I getting a 404 error when trying to open a Jupyter Notebook: Step-by-Step guide

Step 1: Understand the Error
A 404 error is a standard HTTP error message code which means the website you were trying to reach could not be found on the server. It's a client-side error, meaning either the webpage was removed or moved and the URL was not changed accordingly, or that you typed in the URL incorrectly.

Step 2: Check the URL
Ensure that the URL you are trying to access is correct. If you are trying to access a Jupyter notebook, make sure that the notebook exists in the directory you are trying to access it from.

Step 3: Check the Server
If you are running a Jupyter notebook server, make sure that it is running correctly. You can check this by looking at the terminal or command prompt window where you started the server. If there are any error messages, they may give you a clue as to what is going wrong.

Step 4: Restart the Server
If the server is running but you are still getting a 404 error, try restarting the server. You can do this by closing the terminal or command prompt window where the server is running and then starting it again.

Step 5: Check the Notebook File
If you are still getting a 404 error, there may be something wrong with the notebook file itself. Try opening it in a text editor to see if it is formatted correctly. If it is not, you may need to recreate the notebook.

Step 6: Seek Further Help
If you have tried all of these steps and are still getting a 404 error, you may need to seek further help. You can do this by posting a question on a site like Stack Overflow, or by reaching out to the Jupyter community. Be sure to include as much detail as possible about the error and what you have tried so far.