AbstractController::ActionNotFound: The action 'index' could not be found for

weird_rspec_error

I am seeing this error after running rspec:

Failure/Error: raise ActionNotFound, "The action '#{action}' could not be found for #{self.class.name}"
     
     AbstractController::ActionNotFound:
       The action 'index' could not be found for Api::V1::ExpertSchedulesController


All other routes are not throwing error in the controller.

It is weird, because I already define index in routes.rb and inside the controller.

After an hour of debugging, I try to curl the API to see what is wrong.
Then the error pop out.

It is a typo of the Error class in rescue_from.

Therefore, if you see anything about 'index' action not found. You need to check your controller for typo.