How to solve the `Object doesn't support #inspect` error?

Question

I am using rails v3.2.2 and I get a strange error when I try to load associated records.

The following is the Terminal input/output I get:

1.9.2-p318         


        

Answer 1

If are using rails 4, the problem came from protected_attributes gem, u need to upgrade the gem version 1.0.3 to 1.0.5, then it will work.