Drupal 8.x

I'm trying to add a managed_file form element through an ajax call when I upload a file after a few seconds uploaded files not render there but not using ajax callback is working fine. What I get back is an empty "" and the wrapper (#suffix, #prefix) ist not applied as well.

for the better understanding issue I am sharing code and GIF file you will get full after check out code and GIF file

Running Windows 10. I just installed Acquia DevDesktop released on August 12, 2020.

I created a new Drupal site w DevDesktop and when i try to run composer require I get an error.

composer require 'drupal/devel:^2.0'

Error:

  [UnexpectedValueException]
  Could not parse version constraint 2.0': Invalid version string "2.0'"

I'm running Composer version 1.10.12.

I am new around Drupal and running a Drupal 8.9.5 up-to-date version on my server. I encountered few problems with the Drupal previously and some-how solved with Google search but this one looks like specific for me. (5.5.5-10.3.23-MariaDB, PHP Version 7.4.9)

When I click the gear icon on manage display page of any type of content type (article, single page, custom) I see the message "please wait" for milliseconds and then nothing happens (no drop downs). 

Below is the PHP log after I click the gear.

Hi All,

I have managed to get the barrio bootstrap sass theme installed, as well as installing gulp and NPM.  But things are not quite as they seem they should be. 

If I have the gulp command entered in a terminal and the browser opens with the preview, if I update and save an .scss file, that browser should refresh to show the changes right? 

I am using the CND library.

Maybe I am missing something?

Thanks in advance,

Mark.

Hello Members,

We are planning to implement Drupal for hosting our product documentation.

We have a specific need to build a custom Drupal Module that should give following functionality on Drupal:

1. Store the product compatibility information in Drupal database

2. Provide a query interface, where customers can submit the release where they need the compatibility information for.

3. Upon submitting the query, the results (compatibility information for a specific product/release combination) is displayed.

Newbie here!! 

Installed drupal 8.9.3 for my latest project. 

Below is the issue I am facing

Created  the contact us page and am working on 'send email' functionality in drupal but encountered server issues and need your helpI have added 'Mail System' and 'SMTP Authentication Support' modules to support email functionality. 

WAMP and Drupal PHP versions are different. Drupal is using php 5.6 and that's the reason the composer is unable to install PhpMailer Library files.

Is it a normal scenario for Drupal projects?