Coding⏱️ 3 min read📅 2026-06-03

How to Fix: missing go.sum entry for module providing package <package_name>

Missing go.sum entry for module providing package github.com/gobuffalo/buffalo

Quick Answer: Run "go mod tidy" and "go mod verify" to update the go.sum file and resolve the issue.

📋 Table of Contents

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

The error 'missing go.sum entry for module providing package github.com/gobuffalo/buffalo (imported by sc_api/actions)' occurs when the buffalo framework is not properly configured. This issue affects users who have installed the buffalo framework via `buffalo new ` and are trying to run `buffalo dev`.

This error can be frustrating as it prevents the project from running on port 3000, causing the buffalo server to fail. However, with the right steps, you can resolve this issue and get your project up and running.

🛑 Root Causes of the Error

  • The primary reason for this error is that the `buffalo new` command does not automatically update the go.sum file with the required modules. As a result, when you run `buffalo dev`, it cannot find the necessary modules in the go.mod file.
  • An alternative cause could be that the go.mod file or go.sum file are missing or corrupted, preventing the buffalo framework from finding the required modules.

🚀 How to Resolve This Issue

Update go.sum and go.mod files

  1. Step 1: Open your terminal and navigate to your project directory.
  2. Step 2: Run the command `go mod tidy` to update the go.mod file with the required modules.
  3. Step 3: Run the command `go get -u github.com/gobuffalo/buffalo` to update the go.sum file with the latest versions of the required modules.

Manually add missing modules

  1. Step 1: Open your go.mod file and add the following lines: `github.com/gobuffalo/buffalo github.com/gobuffalo/mw-csrf`.
  2. Step 2: Run the command `go get -u github.com/gobuffalo/mw-csrf` to update the go.sum file with the latest version of the required module.

🎯 Final Words

By following these steps, you should be able to resolve the 'missing go.sum entry for module providing package github.com/gobuffalo/buffalo (imported by sc_api/actions)' error and get your buffalo project up and running on port 3000. If you encounter any further issues, please seek additional support.

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