Error in Matlab Function Block

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Alejandro on 24 Sep 2014

I am trying to make my own block to perform the Jacobian matrix of a system. Before making it I wanted to test the example from the matlab web page:

new_system('my_system') open_system('my_system') syms x y r = sqrt(x^2 + y^2); matlabFunctionBlock('my_system/my_block', r)

But I've got the following error:

Error using sym/matlabFunctionBlock>getBlock (line 143) The block 'my_system/my_block' must be a MATLAB Function Block.

Error in sym/matlabFunctionBlock (line 68) b = getBlock(block);

Does anyone know why?

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