安装dusterio/lumen-passport执行php artisan migrate时遇config_path()未定义错误

Hey there, let's get this migration error sorted out! The problem boils down to a key difference between Lumen and Laravel: Lumen doesn't include the config_path() helper function by default, but the dusterio/lumen-passport package is trying to use it in its service provider. Here's how to fix it step by step:

Step 1: Add the missing config_path() helper #

First, we'll manually define the config_path() function in your bootstrap/app.php file. Drop this code right after the autoload require statement:

<?php
require_once __DIR__.'/../vendor/autoload.php';

// Add this helper function here
if (!function_exists('config_path')) {
    function config_path($path = '')
    {
        return app()->basePath() . '/config' . ($path ? '/' . $path : $path);
    }
}

// Rest of your existing code...
try {
    (new Dotenv\Dotenv(__DIR__.'/../'))->load();
} catch (Dotenv\Exception\InvalidPathException $e) {
    // ...
}

If you don't already have a config folder in your project root, go ahead and create one—this is where we'll store Passport's configuration file.

Step 2: Set up Passport's configuration #

Next, we need to get Passport's config file into your config directory. You can do this in one of two ways:

Option A: Use the vendor publish command (if available) #

Run this Artisan command in your terminal:

php artisan vendor:publish --provider="Dusterio\LumenPassport\PassportServiceProvider"

This should copy the passport.php config file from the package into your project's config folder.

Option B: Manually copy the config file #

If the publish command doesn't work (sometimes Lumen has quirks here), head to vendor/dusterio/lumen-passport/config in your project, copy the passport.php file, and paste it into your root config directory.

Step 3: Verify Passport's service provider is registered #

Double-check that you've registered the Passport service provider in bootstrap/app.php:

// Make sure this line exists (usually near the bottom of the file)
$app->register(Dusterio\LumenPassport\PassportServiceProvider::class);

Step 4: Run the migration again #

Now you should be able to run the migration without errors:

php artisan migrate

That should do it! The missing helper function was the main culprit here—adding it bridges the gap between Lumen's lean setup and the package's Laravel-inspired code.

内容的提问来源于stack exchange，提问作者Garpepi