Drupal 8.x

I am working on a migration from D6 to D8 and I got some problems that I do not know how to fix.
Any ideas are welcome - Thanks!!

1) 3 of these
Missing filter plugin: filter_null. [error]

For the life of me I cannot get any them other than Bartik 8.0.0-beta15 to display correctly on my site. I've wiped and started from scratch, in addition to clearing all cache and verifying permissions.

Website is http://www.richardbramlett.com

I'm just starting out as a web dev, and decided to learn Drupal. With the Drupal 8 RC1 release right around the corner I'm wondering if I should just forget about learning Drupal 7 and go straight for Drupal 8 at this point. Of course I could learn more PHP and WordPress first and come back to this question in a month or 2 if that makes more sense.

I am looking for some document that tells me what needs to be set up before
attempting a D6 to D8 migration. I friend send me this:
1. Set up a plain vanilla Drupal 8 site.
2. Re-create your content types
3. Re-create views
4. Re-create blocks

I did my first migration and did not go well
only my users were migrate.

Thanks,

I want my module to programmatically create a content type and attach fields to it. I created the content type and exported it from the configuration menu. When I imported it, it did not create the fields with it. I exported the fields and the field storage from the configuration menu and added each to a separate yml file in my module's 'config/install' directory. My module creates the content type but still does not attach the fields. What am I doing wrong?

Hey guys,
I try getting started with Drupal plugin Development.
I followed the first steps of this guide:
http://getlevelten.com/blog/ian-whitcomb/drupal-8-module-development-par...

To sum it up, I created a little module, that should create a little admin page.
In rounting.yml I have the following configuration:
pattern: 'admin/foobar'