package.json

A reference for Expo-specific properties that can be used in the package.json file.

package.json is a JSON file that contains the metadata for a JavaScript project. This is a reference to Expo-specific properties that can be used in the package.json file.

install

exclude

The following commands perform a version check for the libraries installed in a project and give a warning when a library's version is different from the version recommended by Expo:

• npx expo start and npx expo-doctor
• npx expo install (when installing a new version of that library or using --check or --fix options)

By specifying the library under the install.exclude array in the package.json file, you can exclude it from the version checks:

{
  %%placeholder-start%%Other package.json properties... %%placeholder-end%%
  "expo": {
    "install": {
      "exclude": ["expo-updates", "expo-splash-screen"]
    }
  }
}

autolinking

Allows configuring module resolution behavior by using autolinking property in package.json.

For complete reference, see Autolinking configuration.