Matlab Error : The variable's value is being used both directly and after a transformation. Only one of these usages is permitted for any given variable

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Ajay Pherwani 2013-2-12

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https://ww2.mathworks.cn/matlabcentral/answers/63170-matlab-error-the-variable-s-value-is-being-used-both-directly-and-after-a-transformation-only-one

Can any one give me and explanation about the Error shown by Matlab ?

I am trying to use Do-While block and and in the condition input , i have given an constant block ( with a parameter name in it )

When i try to update a model ( from library model ) , i am getting this Error.

Am i missing out on any point ?

Thanks Ajay

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Kaustubha Govind 2013-2-12

Please see this if this Technical Solution helps you.

Ajay Pherwani 2013-3-5

ok , thanks. The problem was , i was using a parameter (CONSTANT BLOCK) at 3 different places in the model , at two places its was being used as 'uint16' and at one place , it was having a data type as 'int16' in the block properties of the Constant Block .

And also in the work space it was declared as 'uint16'

Thanks for the help

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