Error using patch - Non-numeric data is not supported in 'patch'. While using Plotcube

I'm trying to plot a cube using plotcube

plotcube([width length height],[ 0 0 0 ],1,[1 0 0]);

This is the Error I'm getting

Error using patch
Non-numeric data is not supported in 'patch'

Error in plotcube (line 49)
cellfun(@patch,XYZ{1},XYZ{2},XYZ{3},...

Error in MATLAB (line 31)
plotcube([width length height],[ 0 0 0 ],1,[1 0 0]);

Can anyone help?

Thank You

[Walter Roberson]

What are class() of length and width and height at that point in the code?

Answer 1

[KSSV]

width = 1 ;
length = 1 ;
height = 1 ; 
plotcube([width length height],[ 0 0 0 ],1,[1 0 0]);