Drupal 8.x

Hi

I need to create a block type with a field type "link", how can I add specific class, and the rel= property to the link, i.e. nofollow?

Thank you

Hello - If you are using a Drupal distribution such as Open Public, can you apply a different theme without compromising the other reasons for using a distribution?

Thank you for any insight.

I've recently downloaded and installed drupal 8.0.1 with success on a one.com hosted website. After this I got redirected to the mainpage which resulted in a page without css markup.

After looking around someone advised me to disable the CSS en JS aggregation. Which did the trick for the mainpage. But all the other pages still remain without markup.Read the edit below!

A notable error I get whenever pressing a button eg "Save Configuration, Clean all caches, ..."
Results in the following

According the link, I created a form in my hello_world module, but when I clear cache, the web site return 500 error. So what should I do? My hello_world module's codes is following:

hello_world.info.yml

name: Hello World Module
description: An experimental module to build our first Drupal 8 module
package: Test
type: module
version: 1.0
core: 8.x
configure: hello_world.admin_settings

hello_world.routing.yml

Please Help!

I have just started using Drupal, and now have gone from 7 to 8. I am having problems with the PHP OPcode caching. When I run the status report, all is fine except for this:

** Not enabled
PHP OPcode caching can improve your site's performance considerably. It is highly recommended to have OPcache installed on your server. **

I can't find any simple explanation or tutorials on how to install this, or for that matter, correct this error.

Please help!

Thanks.

I'm using drupal 8.0. With administrative interface i have defined a new Contact form named "Intervent".

Is it possible to show/use this form only for authenticated User?