cvFitLine

Hi!
 I am trying to fit a line to some points. 
 I take the points as 
 for(int i = first; i<last+1; i++)
 {
 points[k] = cvPointTo32f(position[i]);
 k++;
 }
 cvFitLine2D(points,no_of_frames,CV_DIST_L2,0, 0.0, 0.0,line);
 I also tried 
 cvFitLine(points, CV_DIST_L2, 0, 0.01, 0.01, line);
 
 My program compiles correctly but for both these commads, I get the error:
 OpenCV Error: Bad argument
         in function [cvlinefit.cpp:624]:cvFitLine():
 Input array must be 1d continuous array of 2d or 3d points
 OpenCV: terminating the application
 
 I am using opencv-0.9.7 on Fedora Core 3.
 
 I desparately need help, since all my work is stuck because of this.
 
 Thanks in advance.
 
                
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