Invalid theme key error, possibly caused by LongJobChecker

[JosephLeedy]

Title

Preconditions

1. Magento 2.4.0
2. PHP 7.4
3. MySQL 5.7
4. CronScheduler 1.0.6 with patch from PR Adopt ProcessCronQueueObserver to Magento 2.3.5 #21

Steps to reproduce

1. Set up a Magento store with multiple themes

Expected result

1. No error should be logged

Actual result

1. "Invalid theme key" error is written to exception.log

Additional Information

I created an extension with an around plug-in on the method throwing the error, and received this stack trace:

{
  "trace": [
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/Interception/Interceptor.php",
      "line": 58,
      "function": "create",
      "class": "Magento\\Framework\\View\\Design\\Theme\\FlyweightFactory",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/Interception/Interceptor.php",
      "line": 138,
      "function": "___callParent",
      "class": "Magento\\Framework\\View\\Design\\Theme\\FlyweightFactory\\Interceptor",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/app/code/Wagento/ThemeErrorDebug/Plugin/Framework/View/Design/Theme/FlyweightFactoryPlugin.php",
      "line": 22,
      "function": "Magento\\Framework\\Interception\\{closure}",
      "class": "Magento\\Framework\\View\\Design\\Theme\\FlyweightFactory\\Interceptor",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/Interception/Interceptor.php",
      "line": 135,
      "function": "aroundCreate",
      "class": "Wagento\\ThemeErrorDebug\\Plugin\\Framework\\View\\Design\\Theme\\FlyweightFactoryPlugin",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/Interception/Interceptor.php",
      "line": 153,
      "function": "Magento\\Framework\\Interception\\{closure}",
      "class": "Magento\\Framework\\View\\Design\\Theme\\FlyweightFactory\\Interceptor",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/generated/code/Magento/Framework/View/Design/Theme/FlyweightFactory/Interceptor.php",
      "line": 26,
      "function": "___callPlugins",
      "class": "Magento\\Framework\\View\\Design\\Theme\\FlyweightFactory\\Interceptor",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/module-theme/Model/View/Design.php",
      "line": 148,
      "function": "create",
      "class": "Magento\\Framework\\View\\Design\\Theme\\FlyweightFactory\\Interceptor",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/module-theme/Model/View/Design.php",
      "line": 212,
      "function": "setDesignTheme",
      "class": "Magento\\Theme\\Model\\View\\Design",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/App/Area.php",
      "line": 261,
      "function": "setDefaultDesignTheme",
      "class": "Magento\\Theme\\Model\\View\\Design",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/App/Area.php",
      "line": 219,
      "function": "_initDesign",
      "class": "Magento\\Framework\\App\\Area",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/App/Area.php",
      "line": 143,
      "function": "_loadPart",
      "class": "Magento\\Framework\\App\\Area",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/View/DesignLoader.php",
      "line": 54,
      "function": "load",
      "class": "Magento\\Framework\\App\\Area",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/App/Action/Plugin/LoadDesignPlugin.php",
      "line": 53,
      "function": "load",
      "class": "Magento\\Framework\\View\\DesignLoader",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/Interception/Interceptor.php",
      "line": 121,
      "function": "beforeExecute",
      "class": "Magento\\Framework\\App\\Action\\Plugin\\LoadDesignPlugin",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/Interception/Interceptor.php",
      "line": 153,
      "function": "Magento\\Framework\\Interception\\{closure}",
      "class": "KiwiCommerce\\CronScheduler\\Controller\\Adminhtml\\Cron\\LongJobChecker\\Interceptor",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/generated/code/KiwiCommerce/CronScheduler/Controller/Adminhtml/Cron/LongJobChecker/Interceptor.php",
      "line": 26,
      "function": "___callPlugins",
      "class": "KiwiCommerce\\CronScheduler\\Controller\\Adminhtml\\Cron\\LongJobChecker\\Interceptor",
      "type": "->"
    },
    {
      "function": "execute",
      "class": "KiwiCommerce\\CronScheduler\\Controller\\Adminhtml\\Cron\\LongJobChecker\\Interceptor",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/kiwicommerce/module-cron-scheduler/Observer/ProcessCronQueueObserver.php",
      "line": 151,
      "function": "call_user_func_array"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/kiwicommerce/module-cron-scheduler/Observer/ProcessCronQueueObserver.php",
      "line": 603,
      "function": "_runJob",
      "class": "KiwiCommerce\\CronScheduler\\Observer\\ProcessCronQueueObserver",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/kiwicommerce/module-cron-scheduler/Observer/ProcessCronQueueObserver.php",
      "line": 370,
      "function": "processPendingJobs",
      "class": "KiwiCommerce\\CronScheduler\\Observer\\ProcessCronQueueObserver",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/kiwicommerce/module-cron-scheduler/Observer/ProcessCronQueueObserver.php",
      "line": 545,
      "function": "KiwiCommerce\\CronScheduler\\Observer\\{closure}",
      "class": "KiwiCommerce\\CronScheduler\\Observer\\ProcessCronQueueObserver",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/kiwicommerce/module-cron-scheduler/Observer/ProcessCronQueueObserver.php",
      "line": 371,
      "function": "lockGroup",
      "class": "KiwiCommerce\\CronScheduler\\Observer\\ProcessCronQueueObserver",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/Event/Invoker/InvokerDefault.php",
      "line": 88,
      "function": "execute",
      "class": "KiwiCommerce\\CronScheduler\\Observer\\ProcessCronQueueObserver",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/Event/Invoker/InvokerDefault.php",
      "line": 74,
      "function": "_callObserverMethod",
      "class": "Magento\\Framework\\Event\\Invoker\\InvokerDefault",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/module-staging/Model/Event/Manager.php",
      "line": 97,
      "function": "dispatch",
      "class": "Magento\\Framework\\Event\\Invoker\\InvokerDefault",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/generated/code/Magento/Staging/Model/Event/Manager/Proxy.php",
      "line": 95,
      "function": "dispatch",
      "class": "Magento\\Staging\\Model\\Event\\Manager",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/App/Cron.php",
      "line": 86,
      "function": "dispatch",
      "class": "Magento\\Staging\\Model\\Event\\Manager\\Proxy",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/module-cron/Console/Command/CronCommand.php",
      "line": 117,
      "function": "launch",
      "class": "Magento\\Framework\\App\\Cron",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/symfony/console/Command/Command.php",
      "line": 255,
      "function": "execute",
      "class": "Magento\\Cron\\Console\\Command\\CronCommand",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/Interception/Interceptor.php",
      "line": 58,
      "function": "run",
      "class": "Symfony\\Component\\Console\\Command\\Command",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/Interception/Interceptor.php",
      "line": 138,
      "function": "___callParent",
      "class": "Magento\\Cron\\Console\\Command\\CronCommand\\Interceptor",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/Interception/Interceptor.php",
      "line": 153,
      "function": "Magento\\Framework\\Interception\\{closure}",
      "class": "Magento\\Cron\\Console\\Command\\CronCommand\\Interceptor",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/generated/code/Magento/Cron/Console/Command/CronCommand/Interceptor.php",
      "line": 26,
      "function": "___callPlugins",
      "class": "Magento\\Cron\\Console\\Command\\CronCommand\\Interceptor",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/symfony/console/Application.php",
      "line": 1000,
      "function": "run",
      "class": "Magento\\Cron\\Console\\Command\\CronCommand\\Interceptor",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/symfony/console/Application.php",
      "line": 271,
      "function": "doRunCommand",
      "class": "Symfony\\Component\\Console\\Application",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/magento/framework/Console/Cli.php",
      "line": 115,
      "function": "doRun",
      "class": "Symfony\\Component\\Console\\Application",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/vendor/symfony/console/Application.php",
      "line": 147,
      "function": "doRun",
      "class": "Magento\\Framework\\Console\\Cli",
      "type": "->"
    },
    {
      "file": "/var/www/releases/20200814220155/bin/magento",
      "line": 23,
      "function": "run",
      "class": "Symfony\\Component\\Console\\Application",
      "type": "->"
    }
  ]
}

it seems that when LongJobChecker runs, an empty theme key gets passed somewhere, causing this error to be thrown. It could have something to do with the fact that it extends from \Magento\Backend\App\Action.

[MartinKuhl]

Hi, I get the same error

"Incorrect theme identification key" by using M2 2.4 with Cron Scheduler (ver.1.0.7)

[wssweb]

Same error as well on Magento 2.4.1

logged in cron.log is:

[2020-10-29 18:15:05] main.INFO: Cron Job kiwicommerce_cronscheduler_jobchecker is run [] []
[2020-10-29 18:15:05] main.ERROR: Cron Job kiwicommerce_cronscheduler_jobchecker has an error: Incorrect theme identification key. Statistics: {"sum":0,"count":1,"realmem":0,"emalloc":0,"realmem_start":78643200,"emalloc_start":76798296} [] []
[2020-10-29 18:15:05] main.CRITICAL: Incorrect theme identification key {"exception":"[object] (InvalidArgumentException(code: 0): Incorrect theme identification key at /home/user/public_html/vendor/magento/framework/View/Design/Theme/FlyweightFactory.php:60)"} []

[wssweb]

It also happens with the email job as well, even when the email reporting is disabled (again magento 2.4.1):

[2020-11-02 20:14:04] main.INFO: Cron Job kiwicommerce_send_email is run [] []
[2020-11-02 20:14:04] main.ERROR: Cron Job kiwicommerce_send_email has an error: Incorrect theme identification key. Statistics: {"sum":0,"count":1,"realmem":0,"emalloc":0,"realmem_start":71827456,"emalloc_start":70926088} [] []
[2020-11-02 20:14:04] main.CRITICAL: Incorrect theme identification key {"exception":"[object] (InvalidArgumentException(code: 0): Incorrect theme identification key at /home/user/public_html/vendor/magento/framework/View/Design/Theme/FlyweightFactory.php:60)"} []

All other jobs have been running fine