Invalid dimensions encountered while propagating dimensions from output port of Mux to...

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Bhumin Desai 2012-3-21

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https://ww2.mathworks.cn/matlabcentral/answers/33035-invalid-dimensions-encountered-while-propagating-dimensions-from-output-port-of-mux-to

Hey, I'm building a Two phase IM. In one of the subsystems I have a Mux with 4 inputs and it's output connects to the two Fcn blocks which gives a scalar quantity. When I run this system it gives me this error 'Invalid dimensions encountered while propagating dimensions from output port 1 of 'TPIM/Krause Model/Subsystem/Mux2' to input port 1 of 'TPIM/Krause Model/Subsystem/Fmd1'. During propagation, we are attempting to unify the dimensions of the multiplexed signal with dimensions {1,1,1,1} to obtain the dimensions 1' where Fmd1 is one of the Fcn blocks.

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采纳的回答

Guy Rouleau 2012-3-22

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https://ww2.mathworks.cn/matlabcentral/answers/33035-invalid-dimensions-encountered-while-propagating-dimensions-from-output-port-of-mux-to#answer_41628

This sort of error can happen for 2 reasons: Simulink misses information to propagate dimensions properly OR the dimensions you specified are wrong.

To debug, I recommend inserting Signal Specification blocks between your blocks and specify what you think the dimensions should be. It should help determining where the problem comes from.