PlatformIO Core Upgrade Error: Read Timeout & Solution

This issue typically arises due to network connectivity problems during the upgrade process. Here's how you can troubleshoot and resolve the error:

1. Check Your Network Connection: Ensure a stable internet connection and verify you can access websites without issues.
2. Retry the Upgrade Command: Re-running the 'pio upgrade' command might resolve temporary network hiccups.
3. Manual PlatformIO Core Upgrade:
   • Open your command prompt or terminal.
   • Execute the following command:

   'C:\Users\NineDay\.platformio\penv\Scripts\python.exe' -m pip install -U platformio
   

4. Try Using a Proxy Server or Different Network: If the problem persists, experiment with a proxy server or a different internet connection.

Upgrade Your Pip Tool

The message also recommends updating your pip package manager. You can do this by running the following command:

'C:\Users\NineDay\.platformio\penv\Scripts\python.exe' -m pip install --upgrade pip

These steps should help you successfully upgrade your PlatformIO Core and overcome the 'Read Timeout' error.