Creating default object from empty value

[samdark]

https://travis-ci.org/yiisoft/yii2/jobs/21658580

yii\base\ErrorException: Creating default object from empty value
#1  /home/travis/build/yiisoft/yii2/apps/advanced/vendor/yiisoft/yii2/base/Object.php:515
#2  /home/travis/build/yiisoft/yii2/apps/advanced/vendor/yiisoft/yii2/base/Object.php:104
#3  /home/travis/build/yiisoft/yii2/apps/advanced/vendor/yiisoft/yii2/di/Container.php:354
#4  /home/travis/build/yiisoft/yii2/apps/advanced/vendor/yiisoft/yii2/di/Container.php:354
#5  /home/travis/build/yiisoft/yii2/apps/advanced/vendor/yiisoft/yii2/di/Container.php:147
#6  /home/travis/build/yiisoft/yii2/apps/advanced/vendor/yiisoft/yii2/BaseYii.php:341
#7  /home/travis/build/yiisoft/yii2/apps/advanced/vendor/yiisoft/yii2/di/ServiceLocator.php:132
#8  /home/travis/build/yiisoft/yii2/apps/advanced/vendor/yiisoft/yii2/base/Application.php:262
#9  /home/travis/build/yiisoft/yii2/apps/advanced/vendor/yiisoft/yii2/web/Application.php:61
#10 /home/travis/build/yiisoft/yii2/apps/advanced/vendor/yiisoft/yii2/base/Module.php:144

[samdark]

@qiangxue seems to be connected with recent changes.

[samdark]

#2877

[artemzakholodilo]

comment 'traceLevel' => YII_DEBUG ? 3 : 0, at config/web.php and thats all

[VincentX1024]

@artemzakholodilo yep, it works

[drenty]

@artemzakholodilo yes but then traceLevel is set to 0 in the Logger.

[cebe]

working on a fix.

[drenty]

PHP fatal errors are not displayed in my app, I don't know whether it's related or not.