Unknown Property Send Email

[tecnoterabyte]

Q	A
Yii version	3.0
Yii SwiftMailer version	3.0
PHP version	7.1.17
Operating system	Centos 7

I managed to send the email simply by modifying yiisoft / yii-swiftmailer / src / Mailer.php change:

Use Yii -->use yii\helpers\Yii;

2018-09-09 11:15:13 [190.142.101.156][-][d980531faf8f8b16264f6c762dab3ae3][error][yii\exceptions\UnknownPropertyException] yii\exceptions\UnknownPropertyException: Getting unknown property: yii\web\Application::mailer in /home/example.com/public_html/vendor/yiisoft/core/src/base/Component.php:157
Stack trace:
#0 /home/example.com/public_html/vendor/terabytesoft/app/src/views/site/contact.php(50): yii\base\Component->__get('mailer')
#1 /home/example.com/public_html/vendor/yiisoft/view/src/view/View.php(324): require('/home/app.cjtte...')
#2 /home/example.com/public_html/vendor/yiisoft/view/src/view/View.php(246): yii\view\View->renderPhpFile('/home/app.cjtte...', Array)
#3 /home/example.com/public_html/vendor/yiisoft/view/src/view/View.php(145): yii\view\View->renderFile('/home/app.cjtte...', Array, Object(terabytesoft\app\controllers\SiteController))
#4 /home/example.com/public_html/vendor/yiisoft/core/src/base/Controller.php(382): yii\view\View->render('contact', Array, Object(terabytesoft\app\controllers\SiteController))
#5 /home/example.com/public_html/vendor/terabytesoft/app/src/controllers/SiteController.php(144): yii\base\Controller->render('contact', Array)
#6 /home/example.com/public_html/vendor/yiisoft/core/src/base/InlineAction.php(57): terabytesoft\app\controllers\SiteController->actionContact()
#7 /home/example.com/public_html/vendor/yiisoft/core/src/base/Controller.php(160): yii\base\InlineAction->runWithParams(Array)
#8 /home/example.com/public_html/vendor/yiisoft/core/src/base/Module.php(542): yii\base\Controller->runAction('contact', Array)
#9 /home/example.com/public_html/vendor/yiisoft/yii-web/src/Application.php(94): yii\base\Module->runAction('site/contact', Array)
#10 /home/example.com/public_html/vendor/yiisoft/core/src/base/Application.php(525): yii\web\Application->handleRequest(Object(yii\web\Request))
#11 /home/example.com/public_html/public/index.php(11): yii\base\Application->run()
#12 /home/example.com/public_html/public/index.php(12): {closure}()
#13 {main}

[hiqsol]

PR?

[tecnoterabyte]

I have not sent the PR because when making the change of:

yii\helpers\Yii;

The error remains, although if you send in the mail.

[terabytesoftw]

@hiqsol Ready the PR, problem fixed,

Thks,

[hiqsol]

Thank you!