TheNodeBoxGeneratorCompileError

brandon@brema-ubuntu:~/The-NodeBox-Generator$ cmake .
-- IRRLICHT_SOURCE_DIR =
-- IRRLICHT_INCLUDE_DIR = /usr/include/irrlicht
-- IRRLICHT_LIBRARY = /usr/lib/x86_64-linux-gnu/libIrrlicht.a
-- Configuring done
-- Generating done
-- Build files have been written to: /home/brandon/The-NodeBox-Generator
brandon@brema-ubuntu:~/The-NodeBox-Generator$ make
[ 16%] Building CXX object CMakeFiles/NodeBoxGenerator.dir/main.cpp.o
In file included from /home/brandon/The-NodeBox-Generator/Editor.h:4:0,
                 from /home/brandon/The-NodeBox-Generator/main.cpp:3:
/home/brandon/The-NodeBox-Generator/Project.h: In constructor ‘Project::Project(irr::io::path)’:
/home/brandon/The-NodeBox-Generator/Project.h:12:20: error: cannot call constructor ‘Project::Project’ directly [-fpermissive]
/home/brandon/The-NodeBox-Generator/Project.h:12:20: error:   for a function-style cast, remove the redundant ‘::Project’ [-fpermissive]
/home/brandon/The-NodeBox-Generator/Project.h: In constructor ‘Project::Project()’:
/home/brandon/The-NodeBox-Generator/Project.h:19:42: error: call of overloaded ‘string(NULL)’ is ambiguous
/home/brandon/The-NodeBox-Generator/Project.h:19:42: note: candidates are:
In file included from /usr/include/irrlicht/matrix4.h:14:0,
                 from /usr/include/irrlicht/SMaterial.h:9,
                 from /usr/include/irrlicht/IMeshBuffer.h:9,
                 from /usr/include/irrlicht/IDynamicMeshBuffer.h:8,
                 from /usr/include/irrlicht/CDynamicMeshBuffer.h:8,
                 from /usr/include/irrlicht/irrlicht.h:34,
                 from /home/brandon/The-NodeBox-Generator/main.cpp:1:
/usr/include/irrlicht/irrString.h:161:11: note: irr::core::string<T, TAlloc>::string(unsigned int) [with T = char; TAlloc = irr::core::irrAllocator<char>]
/usr/include/irrlicht/irrString.h:113:11: note: irr::core::string<T, TAlloc>::string(int) [with T = char; TAlloc = irr::core::irrAllocator<char>]
/usr/include/irrlicht/irrString.h:103:11: note: irr::core::string<T, TAlloc>::string(double) [with T = char; TAlloc = irr::core::irrAllocator<char>]
/usr/include/irrlicht/irrString.h:87:2: note: irr::core::string<T, TAlloc>::string(const irr::core::string<T, TAlloc>&) [with T = char; TAlloc = irr::core::irrAllocator<char>]
In file included from /home/brandon/The-NodeBox-Generator/Editor.h:4:0,
                 from /home/brandon/The-NodeBox-Generator/main.cpp:3:
/home/brandon/The-NodeBox-Generator/Project.h:19:42: warning: converting to non-pointer type ‘int’ from NULL [-Wconversion-null]
make[2]: *** [CMakeFiles/NodeBoxGenerator.dir/main.cpp.o] Error 1
make[1]: *** [CMakeFiles/NodeBoxGenerator.dir/all] Error 2
make: *** [all] Error 2
brandon@brema-ubuntu:~/The-NodeBox-Generator$