创建表的时候出现问题E:\wamp\www\advanced>yii migrate [ 新手入门 ]

Exception 'yii\db\Exception' with message 'SQLSTATE[HY000] [2002] 由于目标计算机
积极拒绝，无法连接。
'

in E:\wamp\www\advanced\vendor\yiisoft\yii2\db\Connection.php:534

Stack trace:
#0 E:\wamp\www\advanced\vendor\yiisoft\yii2\db\Connection.php(836): yii\db\Conne
ction->open()
#1 E:\wamp\www\advanced\vendor\yiisoft\yii2\db\Connection.php(823): yii\db\Conne
ction->getMasterPdo()
#2 E:\wamp\www\advanced\vendor\yiisoft\yii2\db\Command.php(216): yii\db\Connecti
on->getSlavePdo()
#3 E:\wamp\www\advanced\vendor\yiisoft\yii2\db\Command.php(831): yii\db\Command-
>prepare(true)
#4 E:\wamp\www\advanced\vendor\yiisoft\yii2\db\Command.php(359): yii\db\Command-
>queryInternal('fetchAll', NULL)
#5 E:\wamp\www\advanced\vendor\yiisoft\yii2\db\mysql\Schema.php(198): yii\db\Com
mand->queryAll()
#6 E:\wamp\www\advanced\vendor\yiisoft\yii2\db\mysql\Schema.php(97): yii\db\mysq
l\Schema->findColumns(Object(yii\db\TableSchema))