How to Fix package-lock.json Merge Conflicts

When working on a project with multiple team members, you may encounter merge conflicts in the project's package-lock.json file after adding dependencies.

It may be tempting to resolve these conflicts manually by reviewing each conflict in the lock file. But it's often easier and less error-prone to let the package manager resolve the conflicts for you.

Example

Here's an example of how to fix merge conflicts in a package-lock.json file when merging the main branch into another branch:

Fetch the latest changes from origin:

git fetch origin

Replace package-lock.json file with the one from the origin/main branch:

git checkout origin/main -- package-lock.json

Let npm generate the correct package-lock.json file without merge conflicts

npm install