Question: Cannot Simulate

Dear any body,

I have tried several models/documents (with diagrams) using maplesim v7 32/64bit, but the simulation can not finish and in  equation generation a message appear as follow "protype must be a sructured record type or a record, but receipt squeezed".Same mesaages also appear if I try all examples exist in maplesim. What a big problem this?

Please help me..thanks in advance

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