error while runing code

[elliotresearcher]

hi,
when i run the code it gives an error, can you please help me to solve this problem.
the error is as follows
Error in SaveControlPoints (line 13)
fprintf(fid,'%6.4f %6.4f\r\n',Frx(i),Fry(i));

Error in DeformIt (line 94)
SaveControlPoints(fpath,Frx,Fry);

Error in demo (line 34)
DeformIt(file, segmentation, nObs, WarpedImage, cp,
RandomMorph, RandomRange, alpha1, t, Noise, NoiseType,
NM,NV,ND,NonUniform, ncp, NonUniformStrength);