"amount must be a Numeric" Rails Error - ruby-on-rails

Question

I'm using the active_shipping gem on my rails app and am getting a very strange error reading:
amount must be a Numeric
The error is being called on my shipping method:
def shipping
#user = current_user
#products = current_order.order_items.all
#order = current_order
packages = []
#products.each do |thing|
packages << ActiveShipping::Package.new( thing.product.weight * 16, <<<<<<<<<<ERROR CALLED ON THIS LINE
[thing.product.box_length, thing.product.box_width, thing.product.box_depth],
units: :imperial)
end ## each do
origin = ActiveShipping::Location.new( country: 'US', state: 'CO', city: 'Sedalia', zip: '80135')
if #user.country == 'US'
destination = ActiveShipping::Location.new( country: #user.country, state: #user.state, city: #user.city, zip: #user.zip)
else
destination = ActiveShipping::Location.new( country: #user.country, province: #user.state, city: #user.city, postal_code: #user.zip)
end # if/else for country
ups = ActiveShipping::UPS.new(login: 'lizbayardelle', password: 'UPSpassw0rd', key: '3D287D7B39D0D398')
ups_response = ups.find_rates(origin, destination, packages)
#ups_rates = ups_response.rates.sort_by(&:price).collect {|rate| [rate.service_name, rate.price]}
usps = ActiveShipping::USPS.new(login: '380LINCH6422')
usps_response = usps.find_rates(origin, destination, packages)
#usps_rates = usps_response.rates.sort_by(&:price).collect {|rate| [rate.service_name, rate.price]}
end
The value for the product weight is in the seeds.rb file:
Product.delete_all
Product.create! id: 1, name: "Rule #23 Tee Shirt (Small)", weight: 1, box_width: 6, box_length: 9, box_depth: 2, price: 32.00, short_description: "Size Small. Spread the word. These tee shirts not only have the Manly Art crest, but they also have a man rule on the back to remind any passers-by that may have forgotten.", active: true
Product.create! id: 2, name: "Rule #23 Tee Shirt (Medium)", weight: 1, box_width: 6, box_length: 9, box_depth: 2, price: 32.00, short_description: "Size Medium. Spread the word. These tee shirts not only have the Manly Art crest, but they also have a man rule on the back to remind any passers-by that may have forgotten.", active: true
Product.create! id: 3, name: "Rule #23 Tee Shirt (Large)", weight: 1, box_width: 6, box_length: 9, box_depth: 2, price: 32.00, short_description: "Size Large. Spread the word. These tee shirts not only have the Manly Art crest, but they also have a man rule on the back to remind any passers-by that may have forgotten.", active: true
Product.create! id: 4, name: "Rule #23 Tee Shirt (XL)", weight: 1, box_width: 12, box_length: 14, box_depth: 3, price: 32.00, short_description: "Size XL. Spread the word. These tee shirts not only have the Manly Art crest, but they also have a man rule on the back to remind any passers-by that may have forgotten.", active: true
Product.create! id: 5, name: "Grill Glove", weight: 1, box_width: 6, box_length: 9, box_depth: 2, price: 32.00, short_description: "Protect your manly mitts from the fiery dangers of the grill.", active: true
Product.create! id: 6, name: "BBQ Apron", weight: 1, box_width: 6, box_length: 9, box_depth: 2, price: 32.00, short_description: "Standard grilling apron with three pockets for all your necessary tools. You get to add the grease marks and stains from the marinade of your choosing.", active: true
Can anyone see what's going on here? Google/Stack Overflow don't seem to have heard of this error, which is worrisome...

Answer 1

I ended up adding .to_i to each thing and it made it work for some reason.