( ! ) Fatal error: Uncaught Error: Interface 'Nexmo\Entity\JsonSerializableInterface' not found in C:\Users\Lenovo\Documents\college\vendor\nexmo\client-core\src\Call\Talk.php on line 21
( ! ) Error: Interface 'Nexmo\Entity\JsonSerializableInterface' not found in C:\Users\Lenovo\Documents\college\vendor\nexmo\client-core\src\Call\Talk.php on line 21
Call Stack
#	Time	Memory	Function	Location
1	0.1146	363456	{main}( )	...\Talk.php:0