Software⏱️ 3 min read📅 2026-06-11

How to Fix: What is causing git byte order error?

Git byte order error on Windows 7 with msysgit and Git Extensions.

Quick Answer: Try reinstalling Git Extensions or checking for conflicts between cygwin git, perl, and other packages.

The 'Byte order is not compatible' error in Git can be frustrating, especially when it prevents you from rebasing commits. This issue typically affects Windows users who have installed msysgit and are using Git Extensions.

This problem is particularly vexing because it seems to be specific to the development machine, while a colleague with similar settings has no issues. However, by following these steps, you should be able to resolve the error and get back to rebasing commits.

⚠️ Common Causes

  • The primary cause of this error is an incompatibility between the byte order used by Git Extensions and the native Windows byte order. This can occur when using certain Perl modules or libraries that are not properly configured.
  • Another potential cause could be a misconfiguration of the cygwin git or perl environment, which may lead to a mismatch in byte orders.

🛠️ Step-by-Step Verified Fixes

Configuring Git Extensions to use native Windows byte order

  1. Step 1: Step 1: Open the Git Extensions settings by navigating to `Settings` > `Git Extensions` and then clicking on the `Byte Order` tab.
  2. Step 2: Step 2: In the `Byte Order` tab, select `Native Windows Byte Order` from the dropdown menu. This will ensure that Git Extensions uses the native Windows byte order for all operations.
  3. Step 3: Step 3: Restart your Git Bash or msysgit terminal to apply the changes.

Reconfiguring cygwin git and perl environments

  1. Step 1: Step 1: Open a new Cygwin terminal and run `git config --global core.byteorder system` to configure Git to use the native Windows byte order.
  2. Step 2: Step 2: Run `perl -Mstrict -e 'package strict; strict::base::strict;'` in your Cygwin terminal to enable strict mode for Perl. This will help ensure that Perl uses the correct byte order.

🎯 Final Words

By following these steps, you should be able to resolve the 'Byte order is not compatible' error and get back to rebasing commits using Git Extensions on Windows. Remember to restart your Git Bash or msysgit terminal after making any changes to ensure they take effect.

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