General discussion

As per the clients requirements, modified javascript to be implemented on website.

Kindly help me.

I'm studying Drupal and then I ask trivial questions.
I'm trying to create a personal form.

Now I'm stuck in creating a form where the user can customize a message.

The error is:
InvalidArgumentException: Class "\Drupal\hello_world\Form\SalutationConfigurationForm" does not exist. in Drupal\Core\DependencyInjection\ClassResolver->getInstanceFromDefinition() (linea 24 di /home/mt1kibgh/drupal/core/lib/Drupal/Core/DependencyInjection/ClassResolver.php).

File hello_world.routing.yml

A couple of days ago I bought the theme "Porto"

I installed its "Main Demo" version on a Plesk server with no shell access - no biggie, I thought, I can update Drupal manually.

Applying the classic method of deleting Core and Vendor directories for updating broke the site, because Porto requires much vendor stuff not included in Drupal. ok.

Then I tried to replace core and only overwriting the Vendor directory. No success either, still error 500.

I have a website (mysite.com) without HTTPS, but i recently found out that we already have the certificate and now I'd like to use set it on. I've red a lot information about this change and I can make it work pretty easy, but I also have an App hibridly developed (for Android and iOS) that consumes some information from the site... I have to say that I don't have the code, so I can't make any modification to the App... 

We see some obvious problems with the user experience of Drupal.org. Not sure whether this is the right place to put it.

A) The homepage is less dynamic

You always see static content in the main three sections (menu, Drupal, Developers/Marketers/Agencies)

This leads to less interest to view the homepage of Drupal.org

B) Downloading Drupal is a challenge

Hi,

My admin and website css files not loaded and all css files in html replaced with line. what is problem?

<link rel="stylesheet" href="/?pgl2gu" media="all" />