Software⏱️ 3 min read📅 2026-06-11

How to Fix: NumPy Matplotlib install error: ftheader.h: No such file or directory (Fedora/RHEL)

Error fixing NumPy Matplotlib installation issue on Fedora/RHEL with freetype header error.

Quick Answer: Install the 'freetype' package and try reinstalling matplotlib to resolve the ftheader.h: No such file or directory error.

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. 🔧 Proven Troubleshooting Steps
  3. 💡 Conclusion

The error 'ftheader.h: No such file or directory' occurs when the system cannot find the freetype header file 'ftheader.h', which is required by the matplotlib library. This issue affects users who are trying to install or build matplotlib from source on Fedora/RHEL systems.

This error can be frustrating for developers and data scientists who rely on matplotlib for data visualization tasks. However, with the right steps, you can resolve this issue and successfully install or build matplotlib.

🛑 Root Causes of the Error

  • The primary reason for this error is that the freetype library was not installed correctly, leading to a missing 'ftheader.h' file. Another possible cause is that the system's include path is not set correctly, causing the compiler to misinterpret the header file location.
  • It's also possible that the freetype library was installed but not linked properly, resulting in a missing header file.

🔧 Proven Troubleshooting Steps

Install Freetype 2.5.0.1 using the official package manager

  1. Step 1: 1. Open a terminal and install the Freetype 2.5.0.1 package using the following command: sudo dnf install freetype2
  2. Step 2: 2. Verify that the installation was successful by checking the version of Freetype installed: rpm -qa --list freetype2
  3. Step 3: 3. Restart the system or rebuild matplotlib to ensure the changes take effect

Manually install the 'ftheader.h' file from the Freetype 2.5.0.1 installation directory

  1. Step 1: 1. Find the installation directory of Freetype 2.5.0.1 using the following command: sudo find /usr -name freetype2-2.5.0.1.h
  2. Step 2: 2. Copy the 'ftheader.h' file from the installation directory to the correct location (/usr/include/freetype2/)
  3. Step 3: 3. Rebuild matplotlib or restart the system to apply the changes

💡 Conclusion

By following these steps, you should be able to resolve the 'ftheader.h: No such file or directory' error and successfully install or build matplotlib on your Fedora/RHEL system.

Did this fix your problem?

If not, try searching for specific error codes.

🔍 Search Error Database

❓ Frequently Asked Questions

🛠️ Related Fixes

How to Fix: Pc crashes shortly after launching game (rainbow

Fix Pc crashes shortly after launching game (rainbow six siege). Compl

How to Fix: Installing an APK on a locked down phone

Installing an APK on a locked down phone: Try using a rooted device, e

How to Fix: New PC build- no signal and no clue

Fix New PC build- no signal and no clue. Complete troubleshooting guid