I'm getting error “Class 'Predis\Client' not found” in Laravel 5.2

问题

I want to using Redis in laravel 5.2 however, I'm getting error such a Class 'Predis\Client' not found, How I can solve it.

回答1:

1. First download the REDIS to your system (if you haven't already installed it).

2. Go to the folder where you have downloaded the redis and run this command:

   cd your-redis-folder-name
   make
   

3. Go to your project directory and install composer:

   composer require predis/predis

4. Go to your .env file and add Queue driver:

   QUEUE_DRIVER=redis
   

5. use Mail::queue() to send mail via queue. See Doc.

6. And in your terminal run:

   php artisan queue:listen 
   

   to send.

回答2:

Write in console in project folder:

composer require predis/predis

And thats all.

回答3:

You need to add predis/predis into composer.json for your project. Reference: https://laravel.com/docs/5.2/redis#introduction

回答4:

we have add composer.json file "predis/predis": "~1.0" help working fine.

回答5:

Btw, if you are using laravel workers, with ubuntu supervisor and this error will not dissappear even after you did

composer require predis/predis

Then remember kids, that supervisor caches all your php code, once you boot it. So installing predis after you booted supervisor workers (https://laravel.com/docs/5.6/queues#supervisor-configuration), will not make a difference, until you do

sudo supervisorctl stop laravel-worker:*

and then start it again

sudo supervisorctl start laravel-worker:*

I've been stuck on this for an hour or two, on 3 projects in the last year.

回答6:

Running composer dump after installing predis/predis package might be necessary

回答7:

I solved the problem just including the use Predis; above class file in app folder.

If you installed predis via composer require predis/predis already.

来源：https://stackoverflow.com/questions/34865064/im-getting-error-class-predis-client-not-found-in-laravel-5-2