Eclipse build errors are coming from out-of-date code - c++

Question

I'm running Eclipse 3.7.2 with CDT installed on Ubuntu 12.04.
I created a new C++ project, then added existing source/header files by drag and dropping them into the project explorer. I added the header include paths and source paths to the project settings. The source code I added had a few compiler errors that I fixed. Simple stuff.
My Problem:
For lack of a better explanation, the build error log is showing "ghost" errors; errors that used to exist, but just aren't there anymore. Here's a screenshot showing where it's claiming the errors are in my code. Note: Image is high-resolution. View in separate tab so you can read it!
As you can see, it's complaining about a multiple definition error on line 24. And the code on line 24 has nothing to do with such claims.
Running clean on the project does nothing to help this issue.
Here's the console output for the build.
**** Build of configuration Debug for project blitzAPI ****
make -k all
Building target: blitzAPI
Invoking: GCC C++ Linker
g++ -o "blitzAPI" ./src/blitzAPI.o ./src/function.o ./src/iohelper.o ./src/main.o ./src/strHelper.o
./src/main.o: In function `parseTree(std::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
/home/david/workspace/blitzAPI/Debug/../src/main.cpp:24: multiple definition of `verbose'
./src/blitzAPI.o:/home/david/workspace/blitzAPI/Debug/../src/blitzAPI.cpp:48: first defined here
./src/main.o: In function `parseTree(std::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
/home/david/workspace/blitzAPI/Debug/../src/main.cpp:24: multiple definition of `lineCount'
./src/blitzAPI.o:/home/david/workspace/blitzAPI/Debug/../src/blitzAPI.cpp:48: first defined here
./src/main.o: In function `parseTree(std::basic_string<char, std::char_traits<char>, std::allocator<char> >)':
/home/david/workspace/blitzAPI/Debug/../src/main.cpp:24: multiple definition of `functionList'
./src/blitzAPI.o:/home/david/workspace/blitzAPI/Debug/../src/blitzAPI.cpp:51: first defined here
collect2: ld returned 1 exit status
make: *** [blitzAPI] Error 1
make: Target `all' not remade because of errors.
**** Build Finished ****