prawn_options preference not defined (NoMethodError)

[tvdeyen]

Following the readme of the current 3-0-stable branch I get an

preferable.rb:62:in `has_preference!': prawn_options preference not defined (NoMethodError)

error.

This is how my config looks like:

# config/initializers/spree.rb
Spree::PrintInvoice::Config.set(
  prawn_options: {
    page_layout: :portrait,
    page_size: 'A4'
  }
)

Maybe the readme is outdated?

[rkusa]

Stumbled upon the same issue. The Readme seems to be outdated. The following works

Spree::PrintInvoice::Config.set(
    page_layout: :portrait,
    page_size: 'A4'
)