( ! ) Fatal error: Uncaught Error: Interface "OpenTelemetry\SDK\Metrics\Data\DataInterface" not found in C:\wamp64\www\PrintManager - Copie 26\vendor\open-telemetry\sdk\Metrics\Data\Sum.php on line 7
( ! ) Error: Interface "OpenTelemetry\SDK\Metrics\Data\DataInterface" not found in C:\wamp64\www\PrintManager - Copie 26\vendor\open-telemetry\sdk\Metrics\Data\Sum.php on line 7
Call Stack
#	Time	Memory	Function	Location
1	0.0043	536624	{main}( )	...\Sum.php:0