Hugo Asset Pipeline Error Fix

In this tutorial, you'll learn about Hugo Asset Pipeline Error Fix. We cover key concepts, practical examples, and best practices.

The Problem

ERROR: "/assets/css/main.scss:1:1": resource "css/main.scss" not found in
file cache

Hugo's asset pipeline cannot find or process a SCSS file. This happens when the file path is wrong or the resource is missing.

Wrong

{{ $css := resources.Get "css/style.css" | minify }}

Output: nil — Hugo cannot find the resource at assets/css/style.css because the file is in static/css/style.css or does not exist.

Right

Place the file in assets/css/style.css:

{{ $css := resources.Get "css/style.css" | minify | fingerprint }}
<link rel="stylesheet" href="{{ $css.RelPermalink }}" integrity="{{ $css.Data.Integrity }}">

Output: <link rel="stylesheet" href="/css/style.abc123.min.css" integrity="sha256-...">

Prevention

• Store pipeline-processed files in assets/, not static/
• Use resources.Get for asset pipeline resources
• Chain minify and fingerprint for production builds

Common Mistakes with asset pipeline

1. Overlapping type class instances that cause GHC to reject the program with ambiguous dispatch errors
2. Non-exhaustive pattern matches that compile with warnings then crash at runtime
3. Misunderstanding that String is [Char] with poor performance for large text operations

These mistakes appear frequently in real-world HUGO code. DodaTech's contributors have identified these patterns through analysis of open-source projects and production systems.

Practice Exercise

Write a pure function that safely divides two integers using Maybe, then test it with edge cases like division by zero and negative numbers.

This exercise reinforces the concepts covered in this guide. Try implementing it before checking online solutions.

FAQ