How to Fix Git Revert a Commit Error

In this tutorial, you'll learn about How to Fix Git Revert a Commit Error. We cover key concepts, practical examples, and best practices.

You made a commit with a bug and need to undo it — git revert creates a new commit that reverses the changes, keeping the project history intact.

The Problem

You committed a change that broke the build:

git log --oneline -5

abc1234 (HEAD -> main) Add payment module
def5678 Fix login bug
ghi9012 Add user dashboard
jkl2345 Update dependencies
mno6789 Initial commit

You want to undo abc1234 (Add payment module).

Step-by-Step Fix

Step 1: Revert the commit

git revert abc1234

Step 2: Confirm the revert commit message

Git opens an editor with:

Revert "Add payment module"

This reverts commit abc1234.

Save and close.

Step 3: Verify the revert

git log --oneline -5

Expected:

def5678 (HEAD -> main) Revert "Add payment module"
abc1234 Add payment module
def5678 Fix login bug
ghi9012 Add user dashboard
jkl2345 Update dependencies

Step 4: Revert without opening the editor

git revert abc1234 --no-edit

Step 5: Revert multiple commits

To revert a range:

git revert --no-edit HEAD~3..HEAD

This reverts the last 3 commits.

Step 6: Handle revert conflicts

If the revert causes conflicts:

# Resolve conflicts in the files
# Then continue
git revert --continue

# Or abort
git revert --abort

Prevention Tips

• Use git revert for public branches (main, develop)
• Use git reset only for local/unpushed commits
• Test the revert on a separate branch first
• Communicate reverts with your team
• Always review the revert diff with git show

Common Mistakes with revert commit

1. Forgetting deriving (Show, Eq) on custom data types needed for debugging
2. Placing the wildcard pattern first in case expressions, making all subsequent patterns unreachable
3. Using head and tail instead of pattern matching, causing runtime errors on empty lists

These mistakes appear frequently in real-world GIT 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.

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