Okay, I fixed it, by changing the framework, header, and library search directories. Here are a few instructions:
First, when creating the project, make sure that all the boxes are checked.
Second, change the search directories to their corresponding places in /usr.
Third, make sure your language type is set to C++ 98, and not C++11.
I suspect that compiling SFML yourself will fix the c++11 errors.
I hope this helps someone.