Rebase conflicts occur when Git tries to apply your commits onto a new base but finds overlapping changes. Unlike merge conflicts, you resolve conflicts for each commit individually.
Introduction
This article covers troubleshooting steps and solutions for Git Rebase Abort and Conflict Resolution Guide. The error typically occurs in production environments and can cause service disruptions if not addressed promptly.
Symptoms
During rebase:
Executing: git rebase origin/main
CONFLICT (content): Merge conflict in src/app.js
error: could not apply abc123... Fix authentication bug
hint: Resolve all conflicts manually, mark them as resolved
hint: with "git add/rm <file>", then run "git rebase --continue".
hint: If you prefer to skip this patch, run "git rebase --skip" instead.
hint: To check out the original branch and abort the rebase,
hint: run "git rebase --abort".Status shows:
``` interactive rebase in progress; onto def456 Last command done (1 command done): pick abc123 Fix authentication bug No commands remaining. You are currently rebasing branch 'feature' on 'def456'. (fix conflicts and then run "git rebase --continue") (use "git rebase --skip" to skip this patch) (use "git rebase --abort" to check out the original branch and abort the rebase)
Unmerged paths: (use "git add <file>..." to mark resolution) both modified: src/app.js ```
Common Causes
Rebase replays your commits one by one onto a new base. Each commit application is like a mini-merge. If the base changed in the same lines your commit modifies, Git pauses for resolution.
Common causes: - Your branch and main both modified the same code - Someone else fixed the same bug differently - Refactoring on main conflicts with your feature changes - Your commit is based on old code that no longer exists
Step-by-Step Fix
Check which commit caused conflict:
``bash
git status
Shows the commit being applied.
See remaining commits:
``bash
cat .git/rebase-merge/git-rebase-todo
Shows which commits are left to replay.
View the conflict:
``bash
git diff --name-only --diff-filter=U
See what the incoming commit changes:
``bash
git show HEAD
Compare with base:
``bash
git diff def456..HEAD
Solution 1: Resolve Conflict and Continue
Edit conflicted files:
``bash
nano src/app.js
Remove conflict markers and choose correct content.
Stage resolved files:
``bash
git add src/app.js
Continue rebase:
``bash
git rebase --continue
Git applies the resolved commit and moves to the next one. May encounter more conflicts.
Solution 2: Abort the Rebase
If conflicts are too complex or you want different approach:
git rebase --abortReturns to original state before rebase started. All your commits are preserved on original branch.
Solution 3: Skip the Conflicting Commit
If the commit is no longer needed (bug already fixed on main):
git rebase --skipDiscards the current commit and moves to next. Use only when the change is truly redundant.
Solution 4: Take One Side Completely
For specific files, choose one version:
Keep your commit's version:
``bash
git checkout --ours src/app.js
git add src/app.js
git rebase --continue
Keep the base's version:
``bash
git checkout --theirs src/app.js
git add src/app.js
git rebase --continue
Note: During rebase, --ours is the base you're rebasing onto, --theirs is your commit being applied.
Solution 5: Edit Commit During Rebase
Change the commit content while resolving:
# After resolving conflicts and staging
git commit --amend
# Edit message or content
git rebase --continueSolution 6: Use Merge Tool
Launch visual merge tool:
git mergetoolConfigure your preferred tool:
git config --global merge.tool vscode
git config --global mergetool.vscode.cmd 'code --wait $MERGED'Solution 7: Restart Rebase Differently
Abort and restart with different strategy:
git rebase --abort
git rebase -i origin/mainIn interactive mode, you can: - Reorder commits - Squash commits together - Drop problematic commits - Edit commits before applying
Solution 8: Multiple Conflicts Sequentially
Rebase may hit conflicts on multiple commits:
```bash # Resolve first conflict git add src/app.js git rebase --continue
# Hit second conflict git add src/config.js git rebase --continue
# Hit third conflict git add src/utils.js git rebase --continue ```
Work through each one. If one is too difficult, abort and reconsider.
Solution 9: Rebase Onto Different Base
If current base is problematic:
git rebase --abort
git rebase --onto def456 abc123 featureRebases onto def456, excluding commits before abc123.
Solution 10: Find Lost Commits After Abort
If you abort but can't find original state:
git reflogLook for state before rebase:
abc123 HEAD@{0}: rebase (abort): updating HEAD
def456 HEAD@{1}: rebase (start): checkout def456
ghi789 HEAD@{2}: checkout: moving from main to featureReset to original:
git reset --hard HEAD@{2}Verification
Confirm rebase completed:
``bash
git status
Should show:
``
On branch feature
nothing to commit, working tree clean
Check commit history:
``bash
git log --oneline --graph -10
Your commits should appear on top of base.
Verify no conflict markers:
``bash
git diff --check
No output means clean resolution.
Confirm file content:
``bash
cat src/app.js
Should have your expected changes.
Test functionality:
``bash
npm test
make check
Ensure rebase didn't break anything.
Prevention Strategies
Update your branch frequently:
``bash
git fetch origin
git rebase origin/main
Regular rebasing reduces divergence.
Keep commits small and focused: Smaller commits have smaller conflict surfaces.
Use feature flags: Isolate new code to reduce conflicts with main.
Review before rebase:
``bash
git log origin/main..HEAD --oneline
git diff origin/main..HEAD --stat
Anticipate potential conflicts.
Rebase vs Merge for Conflicts
Rebase conflicts resolve each commit individually - tedious but cleaner history.
Merge conflicts resolve all at once - simpler but creates merge commit.
For complex conflicts, consider merge:
git rebase --abort
git merge origin/mainResolve all conflicts in one step.
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