Custom Validation Not Working- Yii2-app-basic-Yii2

Question

I Posted one question yesterday regarding custom validation for radio button Textfield Mandatory On Radio Button. I got answer. But, that was not exact answer. But, it solve

Answer 1

If you call error without options you supress error output

ActiveField error method

yii\widgets\ActiveField

public function error($options = [])
{
    if ($options === false) {
        $this->parts['{error}'] = '';
        return $this;
    }
    $options = array_merge($this->errorOptions, $options);
    $this->parts['{error}'] = Html::error($this->model, $this->attribute, $options);

    return $this;
}

Your have to remove call error method into VIEW

field($model, 'CompanyName')->label('Company Name')->textInput() ?>