I just created a custom module to add a metatag in the head of a category page of our Magento site by making use of event and observer. When reloading the category page, below is the error I see. I re-ran the upgrade command but the error persists. This is being done to noindex and nofollow the page.
1 exception(s):
Exception #0 (Magento\Framework\Exception\LocalizedException): Please upgrade your database: Run "bin/magento setup:upgrade" from the Magento root directory.
The following modules are outdated:
Perfectmakeupmirrors_PmmHead schema: current version - none, required version - 0.0.1
Perfectmakeupmirrors_PmmHead data: current version - none, required version - 0.0.1
Exception #0 (Magento\Framework\Exception\LocalizedException): Please upgrade your database: Run "bin/magento setup:upgrade" from the Magento root directory.
The following modules are outdated:
Perfectmakeupmirrors_PmmHead schema: current version - none, required version - 0.0.1
Perfectmakeupmirrors_PmmHead data: current version - none, required version - 0.0.1
<pre>#1 Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/module-page-cache/Model/App/FrontController/BuiltinPlugin.php:71]
#2 Magento\PageCache\Model\App\FrontController\BuiltinPlugin->aroundDispatch() called at [vendor/magento/framework/Interception/Interceptor.php:135]
#3 Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/swissup/module-amp/Plugin/Framework/FrontController.php:48]
#4 Swissup\Amp\Plugin\Framework\FrontController->aroundDispatch() called at [vendor/magento/framework/Interception/Interceptor.php:135]
#5 Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]
#6 Magento\Framework\App\FrontController\Interceptor->___callPlugins() called at [generated/code/Magento/Framework/App/FrontController/Interceptor.php:23]
#7 Magento\Framework\App\FrontController\Interceptor->dispatch() called at [vendor/magento/framework/App/Http.php:116]
#8 Magento\Framework\App\Http->launch() called at [generated/code/Magento/Framework/App/Http/Interceptor.php:23]
#9 Magento\Framework\App\Http\Interceptor->launch() called at [vendor/magento/framework/App/Bootstrap.php:263]
#10 Magento\Framework\App\Bootstrap->run() called at [pub/index.php:29]
</pre>
Assuming you have a backup of the database, try
DELETE FROM setup_module where module = "Perfectmakeupmirrors_PmmHead";
Then run bin/magento setup:upgrade