Drupal 8.x

I'm getting the "unexpected error" with my Drupal 8 installation. The error_log says the system cannot find a newly created subtheme, mentioning something about "bootstrap-sub/framework" does not exist." I can't login to fix this and I've deleted the offending subtheme. The error file also mentions something about  "Uncaught PHP Exception Drupal\Core\Asset\Exception\InvalidLibrariesExtendSpecificationException" and "/core/lib/Drupal/Core/Asset/LibraryDiscoveryCollector.php line 149".

Any hint about a possible solution?

Looking for something which was easy in Drupal 7, but can't find it or can't get it to work in Drupal 8. :-/

1. import feed
2. do not publish content immediately
3. run a rule that sets the content to publish every Wednesday at 18.00

Any suggestions how to do this in Drupal 8?

I've tried:

May be you know,At china,we can not visit composer and many other websites.So,we usually make a mirror server for compser by satis.

This time I make a mirror for durpal. It worked,but it did not worked very well.

Many projects can not  be download. And wen I use it on my local, many file links still point to the original url.Some like ftp.drupal.org and packages.drupal.org/8, I set the acrhive config,but satis not cache them.

This is my satis.json,Please help me to fix it:

I am using MS SQL server backend with Drupal 8. When I run more than one process I see the below error very often:

[Microsoft][ODBC Driver 17 for SQL Server][SQL Server]Transaction (Process ID 58) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.: INSERT INTO exc_drupal_cache_config...

When Clearing the cache or when trying to open admin menu items in different tabs I get to see the above error. Also seeing the error below:

A completed development of Drupal 8 site in my Local host I moved on to my production site.

I exported my localhost DATABASE and then imported into Production SITE database

Then I imported all the directories and files to the Production SITE-

The site runs fine altthough the theme is not installed. I try to get the Admin Menu by login using the ADMIN login Details. 

I do login but ACCESS Denied to me !!!

Tried all that I could. I tried to search for an existing thread too. I did not find a solution