problem with Drupal 8
I installed the 8.x-1.0-alpha2 module then added a field to a content type, however, when I save the field I got an error (The website encountered an unexpected error. Please try again later.)
I ignored the error and tried to add a content and when I press install to get a library I got an error (validating h5p package failed
Could you help me solve the problem, please?
I also have a question about the stable Drupal 8 released when it is coming?