swiftmailer - Yii2 send email with template problems -

hello have problem email creation. footer duplicated:

<div class="footer">with kind regards, <?= yii::$app->name ?> team</div> printing 2 times same text 

my settings in web.app:

   'mailer' => [         'class' => 'yii\swiftmailer\mailer',         'viewpath' => '@app/mail/',         'usefiletransport' => false,//set property false send mails real email addresses         //comment following array send mail using php's mail function         'transport' => [             'class' => 'swift_smtptransport',             'host' => 'smtp.gmail.com',             'username' => 'myemail@gmail.com',             'password' => 'mypassword',             'port' => '587',             'encryption' => 'tls',         ],     ], 

and how send email:

$content='test text';     \yii::$app->mailer->compose('@app/mail/layouts/html',        ['content'=>$content])         ->setfrom('myemail@gmail.com')         ->setto('emailto@gmail.com')         ->setsubject('test')         ->send();