Custom block from module I am trying to create a custom block using a module. 

I have followed the instructions on the Drupal site but my block does not appear in the list of custom blocks, or at the bottom of the Block Layout page. 

So I installed the Examples for Developers module. It seemed to install and enable correctly but again, there didn't seem to be any example blocks in the Structure, Blocks Layout screen. 

Thinking that there must be something wrong with my installation, I used the demon site to test the example modules: https://simplytest.me/project/examples/8.x-1.x

Again, when I enable the Block Example module I don't see any block modules in the list of custom blocks, or at the bottom of the Block Layout page. 

Am I doing something wrong, or is this broken in Drupal 8.0?
In order to add a new block you need to click on the button place block then click again on the place block button base on what block you want to added it.