( ! ) Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in E:\Program_Files\wamp64\www\print\vendor\symfony\serializer\Tests\Mapping\ClassDiscriminatorMappingTest.php on line 22
( ! ) Error: Class "PHPUnit\Framework\TestCase" not found in E:\Program_Files\wamp64\www\print\vendor\symfony\serializer\Tests\Mapping\ClassDiscriminatorMappingTest.php on line 22
Call Stack
#	Time	Memory	Function	Location
1	0.0032	371584	{main}( )	...\ClassDiscriminatorMappingTest.php:0