I am working on a model where multiple instantiation of model is required and some equations are written in new model where these model are instantiated.

I am instantiating "reboiler" model in "column". There is one array variable called mixMolFrac[2] in reboiler. I need to assign different values to this variable hence I am using if-else conditions. My if- else also coming inside for loop hence I am writing this in algorithm section since  writing it in equation section was producing some extra equations.

When I write it in algorithm in if- else as "reboiler.mixMolFrac[:] := {0, 0}"  it is showing

  [19] 01:26:52 Translation Error
Internal error checkAndGetAlgorithmOutputs failed.

[20] 01:26:52 Translation Error
No system for the symbolic initialization was generated

But if I write this in equation as "reboiler.mixMolFrac[:] = {0, 0}" without if-else, it is giving right results.

There are eight variables which I am writing in if-else in algorithm but only these  two variables are giving problem.

Thanks in advance.
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