Yii не видит таблицу

Делаю поиск по бд выдает ошибку, а таблица сама есть

CDbException
The table "users" for active record class "Users" cannot be found in the database.

    /var/www/site/yii/framework/db/ar/CActiveRecord.php(2310)

Ругается именно на

public function __construct($model) { $this->_model=$model;

$tableName=$model->tableName();
if(($table=$model->getDbConnection()->getSchema()->getTable($tableName))===null)
    throw new CDbException(Yii::t('yii','The table "{table}" for active record class "{class}" cannot be found in the database.',
        array('{class}'=>get_class($model),'{table}'=>$tableName)));
if($table->primaryKey===null)
{
    $table->primaryKey=$model->primaryKey();
    if(is_string($table->primaryKey) && isset($table->columns[$table->primaryKey]))
        $table->columns[$table->primaryKey]->isPrimaryKey=true;
    elseif(is_array($table->primaryKey))
    {
        foreach($table->primaryKey as $name)
        {
            if(isset($table->columns[$name]))
                $table->columns[$name]->isPrimaryKey=true;
        }
    }
}
$this->tableSchema=$table;
$this->columns=$table->columns;

foreach($table->columns as $name=>$column)
{
    if(!$column->isPrimaryKey && $column->defaultValue!==null)
        $this->attributeDefaults[$name]=$column->defaultValue;
}

foreach($model->relations() as $name=>$config)
{
    $this->addRelation($name,$config);
}

}

main.php

'db'=>array(
    'connectionString' => 'mysql:host=localhost;dbname=db',
    'emulatePrepare' => true,
    'username' => 'root',
    'password' => '',
    'charset' => 'utf8',
    'tablePrefix' => 'tbl_',
),

помогите решить проблему