Why is debug not being logged?

Question

Yii

Actually the question in the following last entry in the debug occurred on September 28th. Do not tell me why and where to look?

Answer 1

1. option, no write permissions to the runtime folder and its children, in this case debug and log
2. We climb into the config and see what's here:

'log' => [
            'traceLevel' => 3,
            'targets' => [
                [
                    'class' => 'yii\log\FileTarget',
                    'levels' => ['error', 'warning'],
                ],
            ],
        ],

If there is 0 instead of 3 (example), then logging is not performed. Well, we look at the rest of the settings or put it here
3. check if debug is enabled in principle