No route found for GET /block-render?_format=xml I have installed render-block 8.x-1.0-alpha1 module in drupal 8 and i try to get all blocks like this:

http://localhost/drupal8/block-render?_format=xml

But i get this message error:

&lt;response&gt;
    &lt;message&gt;No route found for "GET /block-render"&lt;/message&gt;
&lt;/response&gt;


where is the problem ?
I have installed RestUI module and configured the REST resources for Block Render

admin -> config -> SERVICES WEB -> Rest 

and it works now !