Problem with single agent Simulink using RL toolbox

I am using RL toolbox to train a single agent with the following specifications:
for type=1

% obsMat = [1 1];
obsMat = [4 3; 5 3; 6 3; 7 3; 8 3; 9 3; 5 11; 6 11; 7 11; 8 11; 6 12; 7 12; 3 12; ];

% obsMat = [ ];
sA0 = [2 5];

switch type
case 1
s0 = [sA0];
end

Ts = 0.1;
Tf = 100;
maxsteps = ceil(Tf/Ts);
switch type
case 1
mdl = "rlAreaCoverage1";
end
open_system(mdl)

% Define observation specifications.
obsSize = [12 12 4];
oinfo = rlNumericSpec(obsSize);
oinfo.Name = "observations";

% Define action specifications.

numAct=131
switch numAct
case 131
actionSpace = {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 129 130 131 132 133 134 136 137 140 141 142 143 144};

end

ainfo = rlFiniteSetSpec(actionSpace);
ainfo.Name = "actions";
switch type
case 1
blks = mdl + ["/Agent A (Red)"];
end

switch type
case 1
env = rlSimulinkEnv(mdl,blks,{oinfo},{ainfo});
end

env.ResetFcn = @(in) resetMap(in, obsMat);
rng(0)

but I see this error:
Error using rlSimulinkEnv>localValidateIOSpecs (line 178)
Invalid size or type for observation specification.

Error in rlSimulinkEnv (line 90)
localValidateIOSpecs(numAgents,observationInfo,actionInfo);
Do you have any idea what is wrong in my setup?I am using RL toolbox to train a single agent with the following specifications:
for type=1

% obsMat = [1 1];
obsMat = [4 3; 5 3; 6 3; 7 3; 8 3; 9 3; 5 11; 6 11; 7 11; 8 11; 6 12; 7 12; 3 12; ];

% obsMat = [ ];
sA0 = [2 5];

switch type
case 1
s0 = [sA0];
end

Ts = 0.1;
Tf = 100;
maxsteps = ceil(Tf/Ts);
switch type
case 1
mdl = "rlAreaCoverage1";
end
open_system(mdl)

% Define observation specifications.
obsSize = [12 12 4];
oinfo = rlNumericSpec(obsSize);
oinfo.Name = "observations";

% Define action specifications.

end

ainfo = rlFiniteSetSpec(actionSpace);
ainfo.Name = "actions";
switch type
case 1
blks = mdl + ["/Agent A (Red)"];
end

switch type
case 1
env = rlSimulinkEnv(mdl,blks,{oinfo},{ainfo});
end

env.ResetFcn = @(in) resetMap(in, obsMat);
rng(0)

but I see this error:
Error using rlSimulinkEnv>localValidateIOSpecs (line 178)
Invalid size or type for observation specification.

Error in rlSimulinkEnv (line 90)
localValidateIOSpecs(numAgents,observationInfo,actionInfo);
Do you have any idea what is wrong in my setup? I am using RL toolbox to train a single agent with the following specifications:
for type=1

% obsMat = [1 1];
obsMat = [4 3; 5 3; 6 3; 7 3; 8 3; 9 3; 5 11; 6 11; 7 11; 8 11; 6 12; 7 12; 3 12; ];

% obsMat = [ ];
sA0 = [2 5];

switch type
case 1
s0 = [sA0];
end

Ts = 0.1;
Tf = 100;
maxsteps = ceil(Tf/Ts);
switch type
case 1
mdl = "rlAreaCoverage1";
end
open_system(mdl)

% Define observation specifications.
obsSize = [12 12 4];
oinfo = rlNumericSpec(obsSize);
oinfo.Name = "observations";

% Define action specifications.

end

ainfo = rlFiniteSetSpec(actionSpace);
ainfo.Name = "actions";
switch type
case 1
blks = mdl + ["/Agent A (Red)"];
end

switch type
case 1
env = rlSimulinkEnv(mdl,blks,{oinfo},{ainfo});
end

env.ResetFcn = @(in) resetMap(in, obsMat);
rng(0)

but I see this error:
Error using rlSimulinkEnv>localValidateIOSpecs (line 178)
Invalid size or type for observation specification.

Error in rlSimulinkEnv (line 90)
localValidateIOSpecs(numAgents,observationInfo,actionInfo);
Do you have any idea what is wrong in my setup? reinforcement learning MATLAB Answers — New Questions

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