Simulink Matlab Function - Using Cell Problem

I coded all functions in m file, its works clearly in normal file, But when I want to use Simulink there is a problem like:

Unable to determine that every element of 'l_manLinkMatSkewSymm{1}{:}' is assigned before this line.

I did not understand the problem. The problem is on line 4 from the end.

        l_negativeLinkMatSkewSymm{k}{i,i}...
            = -l_manLinkMatSkewSymm{k}{i,i};

Unable to determine that every element of 'l_manLinkMatSkewSymm{1}{:}' is assigned before this line. More informationFunction 'MATLAB Function1' (#63.1776.1804), line 77, column 16: "l_manLinkMatSkewSymm{k}{i,i}" Launch diagnostic report.
Component: MATLAB Function | Category: Coder error

Errors occurred during parsing of MATLAB function 'untitled/MATLAB Function1'
Component: MATLAB Function | Category: Coder error

Errors occurred during parsing of MATLAB function 'untitled/MATLAB Function1'
Component: Simulink | Category: Model error

% % % % % % %  Matlab Function Codes Built in Simulink, Lauches here
function dotVarsLinkVars ...
    = funFunc(Vc_loadVelVect)
skewSymm =@ (x)[0 -x(3) x(2); x(3) 0 -x(1); -x(2) x(1) 0];

p_maniNum = 2;
dof = cell(p_maniNum,1);

dof{1} = 7;
dof{2} = 5;


PHI_manPropMat = cell(p_maniNum,1);

for i = 1:p_maniNum
    PHI_manPropMat{i} = cell(dof{i},dof{i});
end


for k = 1:p_maniNum
    for i = 1:dof{k} 
        for j =1:dof{k}
        PHI_manPropMat{k}{i,j} = zeros([6 6]);
        end
    end
end

% l_linkage Information Matrix
l_manLinkVect = cell(p_maniNum,1);
for i = 1:p_maniNum
    l_manLinkVect{i} = cell(dof{i},1);
end

l_manLinkVect{1}{1,1} = [-4; 1; 0];
l_manLinkVect{1}{2,1} = [1; 0; 0];
l_manLinkVect{1}{3,1} = [0; 1; 0];
l_manLinkVect{1}{4,1} = [1; 0; 0];
l_manLinkVect{1}{5,1} = [1; 0; 0];
l_manLinkVect{1}{6,1} = [0; -1; 0];
l_manLinkVect{1}{7,1} = [1; 0; 0];

l_manLinkVect{2}{1,1} = [3.5; 2; 0];
l_manLinkVect{2}{2,1} = [-1; 0; 0];
l_manLinkVect{2}{3,1} = [-1; 0; 0];
l_manLinkVect{2}{4,1} = [0; -1; 0];
l_manLinkVect{2}{5,1} = [-1; 0; 0];

l_manLinkMatSkewSymm = cell(p_maniNum,1);
l_negativeLinkMatSkewSymm = cell(p_maniNum,1);
for k = 1:p_maniNum
    l_manLinkMatSkewSymm{k} = cell(dof{k},dof{k});
    l_negativeLinkMatSkewSymm{k} = cell(dof{k},dof{k});
    for i =1:p_maniNum
        l_manLinkMatSkewSymm{k}{i,i}...
            = skewSymm(l_manLinkVect{k}{i,1});
        l_negativeLinkMatSkewSymm{k}{i,i}...
            = -l_manLinkMatSkewSymm{k}{i,i};
    end
end
dotVarsLinkVars = l_manLinkMatSkewSymm{2}{1,1};

When I remove that line that have problem on it, system works fine.

[delil codes]

There is problem with; {i,i}

l_negativeLinkMatSkewSymm{k}{i,i}...
            = -l_manLinkMatSkewSymm{k}{i,i};

there is no;

l_manLinkMatSkewSymm{k}{2,2}

I did not try it but. I think this is the problem.