num2str error in random walk plot

I received this error when trying to plot a random walk and title it with a number:

"Error in matlab.graphics.interaction.actions.Linger

Warning: Error occurred while executing the listener

callback for event ButtonExited defined for class

matlab.graphics.primitive.canvas.JavaCanvas:

Execution of script num2str as a function is not

supported:

/Users/Rocketroos/MATLAB-Drive/QuadrantofSubplotsExample/num2str.m

Error in timer (line 133)

obj.Name = ['timer-'

num2str(mltimerpackage('Count'))];

Error in

matlab.graphics.controls.ToolbarController/createTooltipTime"

My code:

N = 1000;
%p is the probability for the person to step forward
p =0.5;
position (1) = 0;
for i = 2:N
    number =rand;
    if number > p
        position(i) = position (i-1)+1;
    else
        position(i) = position (i-1)-1;
    end
end
plot (position)
%for adding text to a number
%Name the string in front of the word string
EndPositionString = num2str(solution(N));
title (['End Position = ', EndPositionString])

Answer 1

[Walter Roberson]

You need to remove /Users/Rocketroos/MATLAB-Drive/QuadrantofSubplotsExample from your MATLAB path, or else you need to rename /Users/Rocketroos/MATLAB-Drive/QuadrantofSubplotsExample/num2str.m to something else.

The code there is interfering with using MATLAB's num2str() function.