This article explains how to solve an error message ‘error: Failed to merge in the changes’ appears when executing brew update.

The following lists are the table of contents about this article.

• Target audience
• Environment
• Preconditions
• Executing brew update-reset
• What does brew update-reset command do?
• Reference articles

Target audience

Those who want to break through the errors that occur when executing brew update and update Homebrew.

Environment

• WSL 2 (Ubuntu 20.04 LTS)

Preconditions

• Installed Homebrew

Executing brew update-reset

Executing the below command to solve the problem.

brew update-reset

That’s it!

What does brew update-reset command do?

Homebrew official and non-official remote repository information are reset, then reacquired and reconfigured.

Reference articles

Homebrew Documentation: update-reset
install brew error error: Failed to merge in the changes.