Laravel faker factory not found

1. The Faker package is listed in the `require-dev` section of `composer.json`, but you are running `composer install --no-dev` during deployment, which skips installing development dependencies[1]. To fix this, either move `"fzaninotto/faker": "~1.5"` to the `require` section or remove the `--no-dev` option when deploying.

2. If you recently upgraded to Laravel 8 or 9 and are using the legacy factory pattern, you need to explicitly add `"fzaninotto/faker": "^1.9.1"` to your `composer.json` file's `require` section[2][3].

3. If you are using the `nwidart/laravel-modules` package and run `composer install --no-dev` when `APP_ENV=local`, you will get this error. This is a known issue with the package[5].

4. In some cases, using the `production` environment can cause this error, as the `Faker\Factory` class is not available. To fix it, change the `.env` file to use `APP_ENV=local` instead of `production`, then run `composer install` to reinstall all packages, including Faker[4].

The general solution is to ensure that the Faker library is properly installed by either:

- Moving `"fzaninotto/faker": "~1.5"` from `require-dev` to `require` in `composer.json`
- Explicitly adding `"fzaninotto/faker": "^1.9.1"` to the `require` section for Laravel 8/9 with legacy factories
- Running `composer install` without the `--no-dev` option during deployment
- Setting `APP_ENV=local` in the `.env` file and running `composer install`

After making the necessary changes, run `composer install` or `composer update` to install or update the Faker package, and the error should be resolved.