HTTP 503 – Service Unavailable after upgrade to RC2

[faradaytrs]

Description

HTTP 503 – Service Unavailable – craft\web\ServiceUnavailableHttpException

Steps to reproduce

Upgraded from last craft 3.3 version using composer and made composer update
Admin panel is also unaccessible with error:
Unknown Property – yii\base\UnknownPropertyException
Setting unknown property: craft\events\TemplateEvent::templateMode

Additional info

• Craft version: 3.4.0-RC2
• PHP version: PHP 7.4.1
• Database driver & version: mysqlnd 7.4.1
• Plugins & versions:
  "acoustep/craft-easymde": "0.1.3",
  "aelvan/imager": "v2.3.1",
  "bolden/htmlcache": "1.0.15",
  "codemonauts/craft-instagram-feed": "^1.0",
  "craftcms/cms": "3.4.0-RC2",
  "craftcms/redactor": "2.5.0",
  "ether/seo": "3.6.3",
  "putyourlightson/craft-entry-count": "^2.0",
  "rynpsc/craft-phone-number": "^1.2",
  "superbig/craft3-http2serverpush": "1.0.1",
  "topshelfcraft/wordsmith": "^3.1",
  "vlucas/phpdotenv": "^3.4.0"

Log

craft\web\ServiceUnavailableHttpException in /Users/imax/PhpstormProjects/globus/vendor/craftcms/cms/src/web/Application.php:651
Stack trace:
#0 /Users/imax/PhpstormProjects/globus/vendor/craftcms/cms/src/web/Application.php(222): craft\web\Application->_processUpdateLogic(Object(craft\web\Request))
#1 /Users/imax/PhpstormProjects/globus/vendor/yiisoft/yii2/base/Application.php(386): craft\web\Application->handleRequest(Object(craft\web\Request))
#2 /Users/imax/PhpstormProjects/globus/web/index.php(21): yii\base\Application->run()
#3 {main}

Admin panel log:

yii\base\UnknownPropertyException: Setting unknown property: craft\events\TemplateEvent::templateMode in /Users/imax/PhpstormProjects/globus/vendor/yiisoft/yii2/base/BaseObject.php:163
Stack trace:
#0 /Users/imax/PhpstormProjects/globus/vendor/yiisoft/yii2/BaseYii.php(558): yii\base\BaseObject->__set('templateMode', 'cp')
#1 /Users/imax/PhpstormProjects/globus/vendor/yiisoft/yii2/base/BaseObject.php(107): yii\BaseYii::configure(Object(craft\events\TemplateEvent), Array)
#2 /Users/imax/PhpstormProjects/globus/vendor/craftcms/cms/src/web/View.php(1605): yii\base\BaseObject->__construct(Array)
#3 /Users/imax/PhpstormProjects/globus/vendor/craftcms/cms/src/web/View.php(435): craft\web\View->beforeRenderPageTemplate('_special/dbupda...', Array, 'cp')
#4 /Users/imax/PhpstormProjects/globus/plugins/magic/vendor/craftcms/cms/src/web/Controller.php(243): craft\web\View->renderPageTemplate('_special/dbupda...', Array)
#5 /Users/imax/PhpstormProjects/globus/plugins/magic/vendor/craftcms/cms/src/controllers/TemplatesController.php(128): craft\web\Controller->renderTemplate('_special/dbupda...')
#6 [internal function]: craft\controllers\TemplatesController->actionManualUpdateNotification()
#7 /Users/imax/PhpstormProjects/globus/plugins/magic/vendor/yiisoft/yii2/base/InlineAction.php(57): call_user_func_array(Array, Array)
#8 /Users/imax/PhpstormProjects/globus/plugins/magic/vendor/yiisoft/yii2/base/Controller.php(157): yii\base\InlineAction->runWithParams(Array)
#9 /Users/imax/PhpstormProjects/globus/plugins/magic/vendor/craftcms/cms/src/web/Controller.php(187): yii\base\Controller->runAction('manual-update-n...', Array)
#10 /Users/imax/PhpstormProjects/globus/vendor/yiisoft/yii2/base/Module.php(528): craft\web\Controller->runAction('manual-update-n...', Array)
#11 /Users/imax/PhpstormProjects/globus/vendor/craftcms/cms/src/web/Application.php(290): yii\base\Module->runAction('templates/manua...', Array)
#12 /Users/imax/PhpstormProjects/globus/vendor/craftcms/cms/src/web/Application.php(634): craft\web\Application->runAction('templates/manua...')
#13 /Users/imax/PhpstormProjects/globus/vendor/craftcms/cms/src/web/Application.php(222): craft\web\Application->_processUpdateLogic(Object(craft\web\Request))
#14 /Users/imax/PhpstormProjects/globus/vendor/yiisoft/yii2/base/Application.php(386): craft\web\Application->handleRequest(Object(craft\web\Request))
#15 /Users/imax/PhpstormProjects/globus/web/index.php(21): yii\base\Application->run()
#16 {main}

[andris-sevcenko]

Can you try nuking the vendor folder, running composer dump-autoload and then running composer update again?

[faradaytrs]

Can you try nuking the vendor folder, running composer dump-autoload and then running composer update again?

i did and it had no effect

[andris-sevcenko]

Is your vendor/craftcms/cms/src/events/TemplateEvent.php file the same as https://github.com/craftcms/cms/blob/3.4/src/events/TemplateEvent.php?

[andris-sevcenko]

@faradaytrs what ended up being the issue?

[faradaytrs]

@faradaytrs what ended up being the issue?

There was a plugin which directly depended on craftcms 3.3. I found out that removing that and running composer update solved the issue.

[andris-sevcenko]

Perfect!