AI Diagnostic Summary

warning: LF will be replaced by CRLF

Well-Documented Error

This error matches known, documented patterns with reliable solutions.

Quick Fix (Most Common Solution)

Seeing "warning: LF will be replaced by CRLF"? This error can be frustrating, but it's usually fixable. It typically affects your development workflow or system. Below you'll find clear, step-by-step solutions to resolve this issue.

High confidence
What This Error Means

Git is converting line endings between Unix (LF) and Windows (CRLF) format.

Frequently documented in developer and vendor support forums.

Based on documented solutions and common real-world fixes.
Not affiliated with browser, OS, or device manufacturers.

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Common Causes
  • Different OS line endings
  • core.autocrlf setting
  • Inconsistent editor settings
How to Fix
  1. Configure core.autocrlf appropriately
  2. Use .gitattributes for per-file control
  3. Convert files to consistent endings

Last reviewed: April 2026 How we review solutions

OS-Specific Behavior

Case-Sensitive Filesystems and Line Ending Warning on Linux vs macOS

Git treats filenames case-sensitively, but macOS's default HFS+ filesystem is case-insensitive (though case-preserving). This difference causes Line Ending Warning when code developed on macOS is deployed to Linux servers. The classic scenario: a developer renames Component.js to component.js on macOS. The filesystem does not register a change, so git status shows nothing. On Linux, the old casing and new casing are different files, causing import errors and Line Ending Warning. To force Git to recognize a case-only rename: use git mv Component.js component_temp.js && git mv component_temp.js component.js — the two-step rename works around the macOS filesystem limitation. Another common pattern: .gitignore entries match differently on case-insensitive systems. A rule that ignores node_modules on macOS also ignores Node_Modules (unlikely but possible with some tools), while on Linux each case would need an explicit rule. Run git ls-files --others --ignored --exclude-standard on both systems to compare which files are being excluded.

Optional follow-up

Some users ask whether saving fixes for recurring errors would be useful when the same issue appears again.

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Explanations are based on documented fixes, real-world reports, and common system behavior. GetErrorHelp is independent and not affiliated with software vendors, device manufacturers, or service providers.
Frequently Asked Questions

Should I use autocrlf?

Use true on Windows, input on Mac/Linux for best compatibility.

How do I fix existing files?

Normalize with git add --renormalize .

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Solutions are based on commonly documented fixes and may not apply in all situations.