Git Interactive Rebase Error Fix

In this tutorial, you'll learn about Git Interactive Rebase Error Fix. We cover key concepts, practical examples, and best practices.

Interactive rebase (git rebase -i) fails with errors like "refusing to squash empty commit", "could not apply", or merge conflicts that stop the rebase. These require resolving conflicts, skipping empty commits, or aborting and retrying.

The Problem

git rebase -i HEAD~5

Error:

error: could not apply abc123... Commit message

Resolve all conflicts manually, mark them as resolved with
"git add/rm <conflicted files>", then run "git rebase --continue".

Or:

refusing to squash a change that has already been squashed

Wrong Approach

# WRONG — aborting immediately without trying to resolve
git rebase --abort

Right Approach

# Fix the conflict, then continue
git add resolved-file.txt
git rebase --continue

Expected output:

[detached HEAD def456] Commit message
 1 file changed, 5 insertions(+), 2 deletions(-)
Successfully rebased and updated refs/heads/main.

Step-by-Step Fix

Step 1: Find the conflicting files

git status

Shows:

both modified:   src/app.py

Step 2: Resolve the conflict

Edit the conflicting file. Search for <<<<<<<, =======, and >>>>>>> markers.

Step 3: Mark as resolved

git add src/app.py

Step 4: Continue the rebase

git rebase --continue

Step 5: Fix empty commits error

# Skip the empty commit
git rebase --skip

Step 6: Abort if things go wrong

git rebase --abort

Step 7: Verify the rebase result

git log --oneline -10

Prevention Tips

• Commit or stash all changes before starting a rebase
• Use git rebase -i on clean working trees
• Squash commits in logical groups, not arbitrary sets
• Review the rebase todo list carefully before saving
• Use git rebase --abort if the rebase seems incorrect

Common Mistakes with interactive rebase

1. Mixing let bindings with <- bindings in do notation, producing type errors
2. Overlapping type class instances that cause GHC to reject the program with ambiguous dispatch errors
3. Non-exhaustive pattern matches that compile with warnings then crash at runtime

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.

FAQ