Yii2：找不到类“ Yii”

Question

I was learning Yii framework a few days ago. I facing with the error below:

Fatal error: Class 'Yii' not found in C:\\xampp\\htdocs\\LoginForm\\views\\user\\views\\default\\register.php on line 17

Answer 1

Try this first row:

use Yii;
//other use statements

and then:

Yii::$app->...

OR you can make it work this way to:

  \Yii:$app->...

Answer 2

Yii is present in the root folder of the project. So you need to tell the program where to locate it. Either write:

use Yii

at the top along with the other use statements, or put a backslash before Yii like: \\Yii