API Signature is required to make requests to PayPal error, I have an API signature set already
问题 I'm having a big problem right now. My site is written in Ruby on Rails, and I'm using the active merchant gem to interface with PayPal. The site is hosted on heroku. I have an API key and API signature set as config variables in my heroku app. However, I still get the error: Running: rake assets:precompile (in /tmp/build_3pvaswdp7wvca1) rake aborted! An API Certificate or API Signature is required to make requests to PayPal (See full trace by running task with --trace) I can run heroku run