rcv toolbox_rover

so, after i run rcvtoolbox v9.9 or v.10 i try to run the code below so that i see a rover(triangle) moving between points but i get the following message "Abstract classes cannot be instantiated. Class 'Vehicle' defines abstract methods and/or properties.

Error in erotima1_k (line 6)

oxima=Vehicle(diag([0.005,0.5*pi/180].^2));"

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i run the code by typing at the command window "[info,v]=mobile_robot_multiple_targets([3 4;5 6; 6 7;8 7])"

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code

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clc;

clear all;

close all

clear memory;

K=2;

oxima=Vehicle(diag([0.005,0.5*pi/180].^2));

oxima.maxspeed=1;

targetx = 10;

targety = 10;

apostasi=100;

%initfis=readfis('initfis.fis');

while apostasi>0.05,

output=oxima.x;

oximaX=output(1);

oximaY=output(2);

oxima8=output(3);

neoX=targetx-oximaX;

neoY=targety-oximaY;

apostasi=sqrt(neoX^2 + neoY^2);

neo8=atan2(neoY,neoX);

e=neo8 - oxima8;

while abs(e)>=pi,

if e<(-1*pi),

e=e+2*pi;

end

if e>=pi,

e=e-2*pi;

end

end

%f_command=evalfis(e,initfis);

f_command=K*e;

oxima.update([1 f_command])

%oxima.update(fliplr(f_command));

oxima.plot(output,'scale',0.15,'fill');

hold on

plot(targetx,targety,'bo','MarkerSize',10);

plot(targetx,targety,'r.','MarkerSize',6);

hold off

grid on; axis([-15 15 -15 15])

drawnow;

end

hold on

oxima.plot_xy('r');

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using matlab r2018b

some of my colleagues made it work

my professor said he has seen this type of error message before and that i should try to use another version of rcvtoolbox whixh i did but still the same.

any help?

thank you