( ! ) Fatal error: Uncaught Error: Class 'think\db\PDOConnection' not found in C:\wamp64\www\ucenter\vendor\topthink\think-orm\src\db\connector\Pgsql.php on line 20
( ! ) Error: Class 'think\db\PDOConnection' not found in C:\wamp64\www\ucenter\vendor\topthink\think-orm\src\db\connector\Pgsql.php on line 20
Call Stack
#	Time	Memory	Function	Location
1	0.0001	360472	{main}( )	...\Pgsql.php:0