Error when installed Yii2

Question

I've install Yii2 framework using composer but get this error in my browser (on localhost):

Invalid Configuration – yii\base\InvalidConfigException

yii\web\Request::cookieValidationKey must be configured with a secret key.

How can I solve this problem?

Answer 1

There is this problem with basic app now https://github.com/yiisoft/yii2-app-basic/issues/69 where composer install doesn't generate this key.

You need to add this key manually.

1. Go to /config/web.php.
2. Edit the line 'cookieValidationKey' => '', to include random string (you can use anything like 'cookieValidationKey' => 'jfsbkjsbfdskjgfdskjbgfsdhjgfajds',

Answer 2

You need to set cookieValidationKey in the config file to a random string. The config file is located under yii/your-projectfolder/config/main-local.php if you are using Yii 2.0 Advanced Template

Answer 3

You need to set cookieValidationKey value in project/config/web.php at line 12.

change at:

'cookieValidationKey' => '',

replace with:

'cookieValidationKey' => 'setyourkey',

That should address the issue.