Software⏱️ 2 min read📅 2026-05-31

How to Fix: A fatal error occurred. The folder [/usr/share/dotnet/host/fxr] does not exist

The dotnet host folder does not exist on Ubuntu 22.04, causing a fatal error.

Quick Answer: Try reinstalling .NET Core and its dependencies using the following command: sudo apt-get install -y libdotnetcore4.0-6.0 libdotnetcore4.0-7.0 libdotnetcore4.0-8.0 libdotnetcore4.0-9.0 libdotnetcore4.0-10.0

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. 🚀 How to Resolve This Issue
  3. 🎯 Final Words

The error message 'A fatal error occurred. The folder [/usr/share/dotnet/host/fxr] does not exist' indicates that the .NET Core host folder is missing on your Ubuntu 22.04 system.

🛑 Root Causes of the Error

  • Missing or corrupted .NET Core host folder.

🚀 How to Resolve This Issue

Method 1: Create the Host Folder

  1. Step 1: Run the following command in your terminal to create the host folder: `sudo mkdir -p /usr/share/dotnet/host/fxr`

Method 2: Update .NET Core

  1. Step 1: Run the following command in your terminal to update .NET Core: `sudo apt-get update && sudo apt-get install -y dotnet-sdk-6.0` (or the latest version available)

🎯 Final Words

To avoid this issue in the future, make sure to update your .NET Core installation regularly and create the host folder if it's missing.

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