Drupal 8.x

I made a D8 website with Composer on my development server. Now I'd like to upload it to the server of my client but it has no Composer. 

Will I be in trouble if I just copy it as is?

composer.json
composer.lock
vendor
web

to the domain root?

I hope this is the right place for this. I am trying to subtheme bootstrap4. I have changed all the necessary files to my theme name and have my new theme installed and set as default. The site renders without any styling whatsoever. After reading the README again I discovered I needed to update an import in the scss/style.scss file. I have tried every known possible combination of my site relative paths but I cannot get this to work. Can anyone shed some light on what I'm doing wrong?

According to the readme...

Hello all,

I am looking to add eCommerce functionality to my site so that I can sell unique keys to customers which is currently running Drupal 8.

The main two commerce solutions I see are Drupal Commerce 2 and Ubercart. Though out of the box both Drupal Commerce and Ubercart modules for selling keys are only for Drupal 7 and depreciated. 

Was just wondering if anyone has done something like this using Drupal 8 with either of these eCommerce solutions or if there is an alternative option for accomplishing this.

Any help is greatly appreciated. 

Hi,

I am trying to set up Module Builder as my application would be similar to an LMS and hence, needs a lot of custom module.

However, Module builder always fails during code scan with below error:

otice: fwrite(): write of 62 bytes failed with errno=22 Invalid argument in DrupalCodeBuilder\Task\Collect\CodeAnalyser->sendCommand() (line 163 of D:\xampp\htdocs\vendor\drupal-code-builder\drupal-code-builder\Task\Collect\CodeAnalyser.php)

Drupal 8.8.5

I have 2 fields data field_data and field_data_di_rientro
When I change the date of field_data, it must update the value of the field_data_of_entro field.

In form_alter I wrote this code
$ form ['field_data'] ['widget'] ['0'] ['value'] ['# attributes'] ['onchange'] = "this.form.data_di_rientro.value = this.value";

Since it does not update the second field, I inserted an alert on updating the field and it displays it
$ form ['field_data'] ['widget'] ['0'] ['value'] ['# attributes'] ['onchange'] = "alert ('OK')";
Where am I wrong?