找不到Yii2类

Question

我收到错误消息“Class... not found”，即使该类存在。该错误发生在yii\web\User类中的loginByAccessToken()方法中。你知道这是什么原因造成的吗？

public function loginByAccessToken($token, $type = null)
{
    /* @var $class IdentityInterface */
    $class = $this->identityClass;
    $identity = $class::findIdentityByAccessToken($token, $type); // <-- Error occurs here.  
    if ($identity && $this->login($identity)) {
        return $identity;
    } else {
        return null;
    }
}

以下是调试跟踪：

{
name: "PHP Fatal Error"
message: "Class 'common\models\User' not found"
code: 1
type: "yii\base\ErrorException"
file: "C:\Bitnami\wampstack-5.5.26-0\apache2\htdocs\csplit\vendor\yiisoft\yii2\web\User.php"
line: 266
stack-trace: [12]
0:  "#0 C:\Bitnami\wampstack-5.5.26-0\apache2\htdocs\csplit\vendor\yiisoft\yii2\filters\auth\AuthMethod.php(50): yii\filters\auth\HttpBasicAuth->authenticate('???', '???', '???')"
1:  "#1 C:\Bitnami\wampstack-5.5.26-0\apache2\htdocs\csplit\vendor\yiisoft\yii2\base\ActionFilter.php(71): yii\filters\auth\AuthMethod->beforeAction('???')"
2:  "#2 C:\Bitnami\wampstack-5.5.26-0\apache2\htdocs\csplit\vendor\yiisoft\yii2\base\Component.php(541): yii\base\ActionFilter->beforeFilter('???')"
3:  "#3 C:\Bitnami\wampstack-5.5.26-0\apache2\htdocs\csplit\vendor\yiisoft\yii2\base\Component.php(541): ::call_user_func:{C:\Bitnami\wampstack-5.5.26-0\apache2\htdocs\csplit\vendor\yiisoft\yii2\base\Component.php:541}('???', '???')"
4:  "#4 C:\Bitnami\wampstack-5.5.26-0\apache2\htdocs\csplit\vendor\yiisoft\yii2\base\Controller.php(263): yii\base\Component->trigger('???', '???')"
5:  "#5 C:\Bitnami\wampstack-5.5.26-0\apache2\htdocs\csplit\vendor\yiisoft\yii2\web\Controller.php(108): yii\base\Controller->beforeAction('???')"
6:  "#6 C:\Bitnami\wampstack-5.5.26-0\apache2\htdocs\csplit\vendor\yiisoft\yii2\base\Controller.php(149): yii\web\Controller->beforeAction('???')"
7:  "#7 C:\Bitnami\wampstack-5.5.26-0\apache2\htdocs\csplit\vendor\yiisoft\yii2\base\Module.php(455): yii\base\Controller->runAction('???', '???')"
8:  "#8 C:\Bitnami\wampstack-5.5.26-0\apache2\htdocs\csplit\vendor\yiisoft\yii2\web\Application.php(84): yii\base\Module->runAction('???', '???')"
9:  "#9 C:\Bitnami\wampstack-5.5.26-0\apache2\htdocs\csplit\vendor\yiisoft\yii2\base\Application.php(375): yii\web\Application->handleRequest('???')"
10:  "#10 C:\Bitnami\wampstack-5.5.26-0\apache2\htdocs\csplit\api\web\index.php(17): yii\base\Application->run()"
11:  "#11 {main}"
-
}

Answer 1

两个可能的原因。

First如果您将应用程序从一个文件夹复制到另一个文件夹，或者如果您在一个文件夹中添加了一个扩展，然后将部分代码复制到另一个文件夹中，则需要在文件夹中执行composer update。

Second控制User子句的名称空间，注意大小写。

Answer 2

在更新所复制的类的命名空间之后。您可以在函数规则中编辑SignupForm类：

'targetClass' => '\common\models\User'

至

'targetClass' => 'app\models\User'