'Yii2 form does not work — Class 'yii\bootstrap\ActiveForm' not found

<?php
use yii\helpers\Html;
use yii\bootstrap\ActiveForm;


$form = ActiveForm::begin(['id' => 'login-form']);

ActiveForm::end(); 
?>

If i run this code the following error will occur.

Fatal error: Class 'yii\bootstrap\ActiveForm' not found in E:\wamp\www\yii2-paypal-master\backend\views\site\login.php on line 6

Kindly help me to fix this.

Thanks

yii2


Solution 1:[1]

Replace 

use yii\bootstrap\ActiveForm;

with

use yii\widgets\ActiveForm;

Form:

   <?php $form = ActiveForm::begin([
            'options'=>['enctype'=>'multipart/form-data'],
    ]);
    ?>

    <?= $form->errorSummary($model) ?>

 <?= $form->field($model, 'title')->textInput(['maxlength' => true]) ?>

  <div class="form-group">
        <?= Html::submitButton($model->isNewRecord ? Yii::t('app', 'Create') : Yii::t('app', 'Update'), ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
    </div>

    <?php ActiveForm::end(); ?>

Solution 2:[2]

First, check the file assets/AppAsset.php if your Class App Asset is like mine, using Boostrap 3 or 4 or o:

public $depends = [
        'yii\web\YiiAsset',
        'yii\bootstrap4\BootstrapAsset',
    ];
}

You need to change it to use yii\bootstrap\ActiveForm; change this to instead use yii\bootstrap4\ActiveForm; it worked for me.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Muhammad Shahzad
Solution 2 Jeremy Caney

Related Questions