Problem with JWT\Signer\Key

[TAURO-AG]

The error: PHP Fatal error: Uncaught Error: Cannot instantiate interface Lcobucci\JWT\Signer\Key

My program:

require __DIR__ . '/vendor/autoload.php';
use Lcobucci\JWT\Signer\Rsa\Sha256;
use Lcobucci\JWT\Signer\Key;
use Lcobucci\JWT\Builder;

$host = '*****';
$private_key =  '*****';
$uid = '*****';

$time       = time();
$signer     = new Sha256();
$privateKey = new Key(base64_decode($private_key, true));
$token      = (new Builder())->identifiedBy(bin2hex(random_bytes(12)))
							 ->expiresAt($time + 1 * 86400)
							 ->getToken($signer, $privateKey);

[lcobucci]

@TAURO-AG the error is correct, from v4+ that code is invalid.

Please follow the documentation to make sure you have the expected code - pay close attention to the upgrading guide if you're migrating from v3.x