I am using pcl MovingLeastsquares to smooth my point cloud My os is windows 10, neotic but when I try to build using catkin_make, I get the following error

error LNK2001: unresolved external symbol "protected: virtual void _cdecl pcl::MovingLeastSquares::performProcessing(class pcl::PointCloud &)" (?performProcessing@?$MovingLeastSquares@UPointXYZI@pcl@@UPointXYZINormal@2@@pcl@@MEAAXAEAV?$PointCloud@UPointXYZINormal@pcl@@@2@@Z) ..\mypcl_tutorial\smooth.exe : fatal error LNK1120: 2 unresolved externals

What is the reason and How to overcome this problem?