Drupal 8.x

Hello,

I have a content type "News".

I added a text field "heading".

I added a text area field "body".

I like to put heading and body into a field group so that I can add limited or unlimited groups. 

Edit content type > Manage display> added a field group "Paragraph". I placed both fields under the fieldgroup under manage display tab.

Manage display > I can set "Unlimited/limited Allowed number of values" for both fields: heading and body. I do not see any option to set "Unlimited/limited Allowed number of values" for the field group.

Hi all, I want to install thunder project and it requires composer. I have problems with it because at the end of the installation of composer i get this message below. I tried hard to find a solution but never worked. How can i fix it? thanks!
Joe

The Composer installer script was not successful [exit code 1].

OpenSSL failed with a 'certificate verify failed' error. This indicates a problem with the Certificate Authority file(s) on your system, which may be out of date.

Tell me how to thematize this element on the page when a regular user edits a record?

I want to hide the given text in "tooltip" bootstrap 4 (bario).

Manuals from bootstrap 3 do not work

Google did not help
So it looks now:

need to do so:

Hello,

I have upgraded a Drupal project from 8.5.5 to 8.7.3 or even 8.7.11 and since I have SQL problems with some Entity Reference Fields.

I have a content type with a lot of entity reference fields of File type and some of them generate SQL errors when I use autocomplete :

Uncaught PHP Exception Drupal\Core\Entity\Query\QueryException: "'' not found" at core/lib/Drupal/Core/Entity/Query/Sql/Tables.php line 367 (function ensureEntityTable).

Hi there. I'm facing some problems here when importing content to another site:

The import failed due to the following reasons:
  Unexpected error during import with operation delete for language.entity.en: Can not delete the default language

Any ideas?

Thanks for your time.

UPDATE 1

 Drupal 8.8.1 site that was installed from scratch using the new template. So core and modules are in www/web.

But two of my modules need updating, and webform requires composer to do it. But none of these work:

www]# composer update 'drupal/webform:^5.7' 'drupal/typed_data:^1.0'  --no-dev --with-dependencies
Package "drupal/webform:^5.7" listed for update is not installed. Ignoring.
Package "drupal/typed_data:^1.0" listed for update is not installed. Ignoring.
Loading composer repositories with package information
Updating dependencies