[IGSTK-Users] pure virtual function in

[Sean Lee]

I am getting this link error when I building the calibration example.
1>------ Build started: Project: ZERO_CHECK, Configuration: Debug Win32 ------2>------ Build started: Project: PivotCalibrationFLTKWidgetExample, Configuration: Debug Win32 ------2>PivotCalibrationFLTKWidgetExampleUI.obj : error LNK2001: unresolved external symbol "public: virtual void __thiscall PivotCalibrationFLTKWidgetExampleUI::InitializeTrackingAndCalibration(void)" (?InitializeTrackingAndCalibration at PivotCalibrationFLTKWidgetExampleUI@@UAEXXZ)2>PivotCalibrationFLTKWidgetExampleUI.obj : error LNK2001: unresolved external symbol "public: virtual void __thiscall PivotCalibrationFLTKWidgetExampleUI::SaveCalibration(void)" (?SaveCalibration at PivotCalibrationFLTKWidgetExampleUI@@UAEXXZ)2>C:\OpensourceBinary\IGSTK2\bin\Debug\PivotCalibrationFLTKWidgetExample.exe : fatal error LNK1120: 2 unresolved externals========== Build: 1 succeeded, 1 failed, 4 up-to-date, 0 skipped ==========
But suppose that those two functions are pure virtual functions and would be overridden in  PivotCalibrationFLTKWidgetExample. 
Any ideas what are happening? Thanks.
Sean 		 	   		  
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