97 that moment when you need to setup a new project using the same framework as another one. End up copying a lot of code and configuration changes from the old one to make your life easier. Only to forget to change the most important thing there is (in my case the thing that base_url uses to create the base url >_< )
Result: An error message complaining about an line that doesn't exist in an existing file in the new project. Without me realizing that it is complaining about a file from the old project >_<