Software⏱️ 2 min read📅 2026-05-31

How to Fix: Ubuntu 20.04 upgrade, Python missing libffi.so.6

Ubuntu 20.04 upgrade issue with missing libffi.so.6, solution involves installing libffi-dev package.

Quick Answer: Install the libffi-dev package instead of libffi to resolve the error.

📋 Table of Contents

  1. 💡 Why You Are Getting This Error
  2. ✅ Best Solutions to Fix It
  3. 🎯 Final Words

The error you're experiencing is due to the removal of libffi in Ubuntu 20.04, which was a dependency for some Python packages, including Numpy. The package was removed as part of the transition to Python 3.x.

💡 Why You Are Getting This Error

  • [Cause]

✅ Best Solutions to Fix It

Method 1: Reinstalling libffi

  1. Step 1: Run the following command to reinstall libffi:
sudo apt-get install -y libffi-dev

Method 2: Installing Python 3.x with libffi support

  1. Step 1: Run the following command to install Python 3.x:
sudo apt-get install python3

Method 2 (continued)

  1. Step 2: Run the following command to install pip and other Python packages with libffi support:
sudo apt-get install python3-pip

🎯 Final Words

By following these methods, you should be able to resolve the libffi.so.6 error and continue using Numpy in Python.

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