linkerrs

[GBL]

Windows 2000 : Code::Blocks version 1 release candidate 2.
GNU GCC Compiler is set to default.
It is a demo project. got following link errors.  How to fix it?. what is simple solution?.
Switching to target: default
Linking executable: C:\QTApp\QTapp.exe
.objs\lcdrange.o:lcdrange.cpp:(.text+0x172): undefined reference to `vtable for LCDRange'
.....
:x

[Game_Ender]

That looks like you have a function called LCDRange defined in a class but not actually declared this is not a generally programming forum and that's not a Code::Blocks problem.  You should also get yourself a nightly build (do not install over RC2), head over to the nightly build forum.