php - Invalid Configuration - cookieValidationKey must be configured with a secret key -


i have exception in yii2 appication:

invalid configuration – yii\base\invalidconfigexception yii\web\request::cookievalidationkey must configured secret key.

but in config web.php have:

'components' => [         'request' => [             // !!! insert secret key in following (if empty) - required cookie validation             'cookievalidationkey' => 'hkbf99ktfgngekpribsrxerpqgfwjwfn',         ],

app worked, when i'm tried add rbac admin module have problem


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