I am trying to run a sample code, but I keep getting:
D:\DOCUMENT\V PLAY\FirstProj-build-desktop-Qt_4_8_1_for_Desktop_-_MinGW__Qt_SDK__Debug\..\FirstProj\main.cpp:14: error: undefined reference to `FpsQMLViewer::FpsQMLViewer(QWidget*)’
D:\DOCUMENT\V PLAY\FirstProj-build-desktop-Qt_4_8_1_for_Desktop_-_MinGW__Qt_SDK__Debug\..\FirstProj\main.cpp:14: error: undefined reference to `FpsQMLViewer::FpsQMLViewer(QWidget*)’
D:\DOCUMENT\V PLAY\FirstProj-build-desktop-Qt_4_8_1_for_Desktop_-_MinGW__Qt_SDK__Debug\..\FirstProj\main.cpp:14: error: undefined reference to `FpsQMLViewer::FpsQMLViewer(QWidget*)’
and on and on. About 10 build errors all in all. I figured it might have to do with the Tool Chain in the project build. I tried including one of the options as specified in the installation guide, but it cannot be selected.
I want to know what other way to solve to solve this problem, and if the problem is what I suspect, how do I point Qt 4.8.1 to the installed Felgo SDK as shown in the window in the installation guide. Will appreciate a great deal if I can be helped.