Two weeks ago I didn't have any problem, but today this appears when I put composer install
Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Nothing to install or update
Generating optimized autoload files
Illuminate\Foundation\ComposerScripts::postAutoloadDump
PHP Fatal error: Interface 'Psr\Container\ContainerInterface' not found in /opt/lampp/htdocs/nuevodirectorio/ClinicaLaravel/vendor/laravel/framework/src/Illuminate/Contracts/Container/Container.php on line 8Fatal error: Interface 'Psr\Container\ContainerInterface' not found in /opt/lampp/htdocs/nuevodirectorio/ClinicaLaravel/vendor/laravel/framework/src/Illuminate/Contracts/Container/Container.php on line 8
Here is part of the code of Container.php:
<?php
namespace Illuminate\Container;
use Closure;
use Exception;
use ArrayAccess;
use LogicException;
use ReflectionClass;
use ReflectionParameter;
use Illuminate\Support\Arr;
use Illuminate\Contracts\Container\BindingResolutionException;
use Illuminate\Contracts\Container\Container as ContainerContract;
class Container implements ArrayAccess, ContainerContract
{
...
}
Best Answer
At my job we have the same problem. In our case, there was a psr/container file causing a conflict, but this file was in the composer global cache, so remove the vendor folder doesn't help us. The solution we found was to clear the composer cache using this command:
then we remove the vendor folder and run composer install, everything goes fine. I hope this solution help someone.