( ! ) Deprecated: Symfony\Component\HttpKernel\DataCollector\DumpDataCollector::__construct(): Implicitly marking parameter $stopwatch as nullable is deprecated, the explicit nullable type must be used instead in E:\Program_Files\wamp64\www\techtms_v2\vendor\symfony\http-kernel\DataCollector\DumpDataCollector.php on line 42

( ! ) Deprecated: Symfony\Component\HttpKernel\DataCollector\DumpDataCollector::__construct(): Implicitly marking parameter $requestStack as nullable is deprecated, the explicit nullable type must be used instead in E:\Program_Files\wamp64\www\techtms_v2\vendor\symfony\http-kernel\DataCollector\DumpDataCollector.php on line 42

( ! ) Deprecated: Symfony\Component\HttpKernel\DataCollector\DumpDataCollector::__construct(): Implicitly marking parameter $dumper as nullable is deprecated, the explicit nullable type must be used instead in E:\Program_Files\wamp64\www\techtms_v2\vendor\symfony\http-kernel\DataCollector\DumpDataCollector.php on line 42

( ! ) Deprecated: Symfony\Component\HttpKernel\DataCollector\DumpDataCollector::collect(): Implicitly marking parameter $exception as nullable is deprecated, the explicit nullable type must be used instead in E:\Program_Files\wamp64\www\techtms_v2\vendor\symfony\http-kernel\DataCollector\DumpDataCollector.php on line 139

( ! ) Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DataCollector\DataCollector" not found in E:\Program_Files\wamp64\www\techtms_v2\vendor\symfony\http-kernel\DataCollector\DumpDataCollector.php on line 28
( ! ) Error: Class "Symfony\Component\HttpKernel\DataCollector\DataCollector" not found in E:\Program_Files\wamp64\www\techtms_v2\vendor\symfony\http-kernel\DataCollector\DumpDataCollector.php on line 28
Call Stack
#	Time	Memory	Function	Location
1	0.0224	442432	{main}( )	...\DumpDataCollector.php:0