Activemerchant rails 3.1 wrong number of arguments

Hi,

Ive followed the railscasts to integrate paypal express and
activemerchant on rails 2.5 without any issues
#146 PayPal Express Checkout - RailsCasts.

When using the same code in a rails 3.1 app i get the following error
below, this happens when i try to set the purchase up:

EXPRESS_GATEWAY.setup_purchase(100, {:return_url =>
www.bbc.co.uk”, :cancel_return_url => “www.bbc.co.uk”})

ArgumentError: wrong number of arguments (1 for 0)
from /Users/jxxxxxxxxxr/.rvm/gems/
ree-1.8.7-2010.02@mystaffdeals/gems/
builder-3.0.0/lib/builder/xmlbase.rb:135:in to_xs' from /Users/xxxxxxxx/.rvm/gems/ree-1.8.7-2010.02@mystaffdeals/ gems/ builder-3.0.0/lib/builder/xmlbase.rb:135:in _escape’
from /Users/xxxxxxxx/.rvm/gems/ree-1.8.7-2010.02@mystaffdeals/
gems/
builder-3.0.0/lib/builder/xmlbase.rb:140:in _escape_quote' from /Users/xxxxxxxx/.rvm/gems/ree-1.8.7-2010.02@mystaffdeals/ gems/ builder-3.0.0/lib/builder/xmlmarkup.rb:320:in _attr_value’
from /Users/xxxxxxxx/.rvm/gems/ree-1.8.7-2010.02@mystaffdeals/
gems/
builder-3.0.0/lib/builder/xmlmarkup.rb:311:in _insert_attributes' from /Users/xxxxxxxx/.rvm/gems/ree-1.8.7-2010.02@mystaffdeals/ gems/ builder-3.0.0/lib/builder/xmlmarkup.rb:310:in each’
from /Users/xxxxxxxx/.rvm/gems/ree-1.8.7-2010.02@mystaffdeals/
gems/
builder-3.0.0/lib/builder/xmlmarkup.rb:310:in _insert_attributes' from /Users/xxxxxxxx/.rvm/gems/ree-1.8.7-2010.02@mystaffdeals/ gems/ builder-3.0.0/lib/builder/xmlmarkup.rb:293:in _start_tag’
from /Users/xxxxxxxx/.rvm/gems/ree-1.8.7-2010.02@mystaffdeals/
gems/
builder-3.0.0/lib/builder/xmlbase.rb:60:in method_missing' from /Users/xxxxxxxx/.rvm/gems/ree-1.8.7-2010.02@mystaffdeals/ gems/ builder-3.0.0/lib/builder/xmlbase.rb:34:in tag!’
from /Users/xxxxxxxx/.rvm/gems/ree-1.8.7-2010.02@mystaffdeals/
gems/
activemerchant-1.18.1/lib/active_merchant/billing/gateways/
paypal_express.rb:97:in build_setup_request' from /Users/xxxxxxxx/.rvm/gems/ree-1.8.7-2010.02@mystaffdeals/ gems/ activemerchant-1.18.1/lib/active_merchant/billing/gateways/ paypal_express.rb:25:in setup_purchase’

Ive also followed this tutorial

and get the same error message above when i try the
gateway.setup_purchase method.

Anybody got any ideas, im really stuck now. Ive tried everything i
can think off, different versions of the activemerchant gem, etc etc
etc

JB

John B. wrote in post #1032006:

Hi,

Ive followed the railscasts to integrate paypal express and
activemerchant on rails 2.5 without any issues
#146 PayPal Express Checkout - RailsCasts.

When using the same code in a rails 3.1 app i get the following error
below, this happens when i try to set the purchase up:

EXPRESS_GATEWAY.setup_purchase(100, {:return_url =>
www.bbc.co.uk”, :cancel_return_url => “www.bbc.co.uk”})

ArgumentError: wrong number of arguments (1 for 0)
from /Users/jxxxxxxxxxr/.rvm/gems/
ree-1.8.7-2010.02@mystaffdeals/gems/
builder-3.0.0/lib/builder/xmlbase.rb:135:in to_xs' from /Users/xxxxxxxx/.rvm/gems/ree-1.8.7-2010.02@mystaffdeals/ gems/ builder-3.0.0/lib/builder/xmlbase.rb:135:in _escape’
from /Users/xxxxxxxx/.rvm/gems/ree-1.8.7-2010.02@mystaffdeals/

JB

this issue due to hpricot gem with ruby 1.8.7
if you remove hpricot you can fix this issue