Software⏱️ 2 min read📅 2026-05-31

How to Fix: GLIBCXX_3.4.20 not found, how to fix this error?

Learn how to fix: GLIBCXX_3.4.20 not found, how to fix this error?.

Quick Answer: Try checking your system settings or restarting.

The error 'GLIBCXX_3.4.20 not found' occurs when the system cannot locate a specific version of the GNU C++ library (libstdc++.so.6). This is likely due to the fact that the Layout Editor requires this specific version, which may not be available on your Ubuntu 14.04.1 64-bit LTS system.

🛠️ Step-by-Step Verified Fixes

Method 1: Update the System Package List

  1. Step 1: Run the command sudo apt-get update to update the system package list.

Method 2: Install the Required Library

  1. Step 1: Run the command sudo apt-get install libstdc++6 to install the required version of the GNU C++ library.

✨ Wrapping Up

By following these steps, you should be able to resolve the 'GLIBCXX_3.4.20 not found' error and run the Layout Editor successfully.

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