Fatal error: Uncaught exception 'Braintree_Exception_Configuration' with message 'environment needs to be set.'

Question

How to set the environment? And how to rectify this error?

Fatal error: Uncaught exception 'Braintree_Exception_Configuration'

Answer 1

Message is pretty selfexplanatory. You need to call

Braintree_Configuration::environment(...);

with proper parameter prior using BT, as it needs to know if you want to talk to production or sandbox.