Dimension.ByElements is not Working Properly

Hi,
all

please help me
dimension is not create, i Tried many times but result is not fulfil.

The error shows that referenceElements gets a wrong input, are you certain that what you give as input is a geometric reference?

Right
i given worng input, so is not working.

Thanks for help

I generally find the warning message mostly confusing, but occasionally it’s pretty clear.