Getting error while updating laravel from 5.5 to 5.7 (Undefined class constant 'HEADER_CLIENT_IP')

user_9666442 0
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i am getting this error.

Undefined class constant 'HEADER_CLIENT_IP' Script @php artisan package:discover handling the post-autoload-dump event returned with error code 1

I changed 

app\Http\Middleware\TrustedProxies.php by:

    <?php

  namespace App\Http\Middleware;

  use Illuminate\Http\Request;
  use Fideloper\Proxy\TrustProxies as Middleware;

  class TrustProxies extends Middleware
  {
    protected $proxies;
    protected $headers = Request::HEADER_X_FORWARDED_ALL;
  }

Here is my .composerjson file

{
    "name": "laravel/laravel",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "type": "project",
    "require": {
        "php": ">=7.0.0",
        "fideloper/proxy": "~3.3",
        "laravel/framework": "5.7.*",
        "laravel/tinker": "~1.0",
        "tymon/jwt-auth": "^0.5.12"
    },
    "require-dev": {
        "filp/whoops": "~2.0",
        "fzaninotto/faker": "~1.4",
        "mockery/mockery": "~1.0",
        "phpunit/phpunit": "~6.0",
        "symfony/thanks": "^1.0"
    },
    "autoload": {
        "classmap": [
            "database/seeds",
            "database/factories"
        ],
        "psr-4": {
            "App\\": "app/"
        }
    },
    "autoload-dev": {
        "psr-4": {
            "Tests\\": "tests/"
        }
    },
    "extra": {
        "laravel": {
            "dont-discover": [
            ]
        }
    },
    "scripts": {
        "post-root-package-install": [
            "@php -r \"file_exists('.env') || copy('.env.example', '.env');\""
        ],
        "post-create-project-cmd": [
            "@php artisan key:generate"
        ],
        "post-autoload-dump": [
            "Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
            "@php artisan package:discover"
        ]
    },
    "config": {
        "preferred-install": "dist",
        "sort-packages": true,
        "optimize-autoloader": true
    } }

I am still handling the same error. Can you guys figure it out where the problem is ?

laravel xampp php
4 Answers

At composer.json Change fideloper/proxy

From 

"fideloper/proxy": "~3.3",

To

"fideloper/proxy": "^4.0",

After that run

composer update
user_97663290

1) change your composer.json to following

"php": ">=7.1.3",
"fideloper/proxy": "^4.0",
"laravel/framework": "5.7.*",
"laravel/tinker": "~1.0",

2) change your App\Http\Middleware\TrustProxies.php to following

<?php

namespace App\Http\Middleware;

use Illuminate\Http\Request;
use Fideloper\Proxy\TrustProxies as Middleware;

class TrustProxies extends Middleware
{
    /**
     * The trusted proxies for this application.
     *
     * @var array|string
     */
    protected $proxies;
    /**
     * The headers that should be used to detect proxies.
     *
     * @var int
     */
    protected $headers = Request::HEADER_X_FORWARDED_ALL;
}

3) remove the file from the config directory having name trustedproxy.php if exist

4) run the following command into the console from your application directory

composer update

5) this step is not necessary but it will clear all cache and autoload files

php artisan clear-compiled

composer dump-autoload

php artisan cache:clear

php artisan config:clear

php artisan view:clear
user_84865650

If you guys getting this error while updating to laravel 9.0 then remove below line of code from composer.json

"fideloper/proxy": "^4.4.1",

And run composer update command in terminal

composer update

Then, change the use Fideloper\Proxy\TrustProxies as Middleware; to use Illuminate\Http\Middleware\TrustProxies as Middleware; in a file app\Http\Middleware\TrustProxies.php file

user_96837770

Did you try to update the composer 

composer update

and dump the autoload ?

composer dump-autoload
user_32529880
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