Drupal 8.x

I've just installed 8 alpha 11 and the date picker is missing for date fields. Where has it gone?

i can't install a new theme in drupal 8. i have tried to set the theme in de source folder root/themes/ and sites/all/theme but it didn't work. i have also tried to upload the zip file whitin drupal ->Appearance->install new theme but nothing happens after clicking. can someone help me?

macbook pro 10.9.2
MAMP
Drupal 8-Alpha10
Theme: https://drupal.org/project/basic
https://drupal.org/project/bluemarine

I am looking for a module that would allow me to enter data like possibly an office directory or other data, then display it as a page. I would need a way to edit or delete that data. I have looked into several modules like flexi-forms but I could not get that one to work right.

Does such a module exist?

i m having a website www.eAhmadnagar.com currently i m using joomla 3.2 but i m facing some problems. i want to safely migrate on drupal 8.x without losing anything such as articles, categories, tags, links, photos, etc. i m new to drupal. i don't know how to safely migrate. plz anyone can help me out from this ?

Hi, I was just in the process of installing Drupal 8 and I had just put in my database info, it waited for my site for a while until I got the message "No data recieved". Now when I try and load my site I get a white screen. I put the code in index.php to show the error message and it's showing this:

Fatal error: Call to a member function isAuthenticated() on a non-object in /home/whatahit/public_html/core/includes/session.inc on line 256

Fatal error: Call to a member function id() on a non-object in /home/whatahit/public_html/core/includes/session.inc on line 181

From admin/modules page using drupal 8. There is no button display from where I will add new module.
Can anyone help me to findout