Fatal error: Uncaught Error: Interface 'Psr\Http\Message\RequestInterface' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\vendor\psr\http-message\src\ServerRequestInterface.php:43
Stack trace:
#0 {main}
  thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\vendor\psr\http-message\src\ServerRequestInterface.php on line 43