Improve mass matrix error message

SciML / OrdinaryDiffEq.jl

High performance ordinary differential equation (ODE) and differential-algebraic equation (DAE) solvers, including neural ordinary differential equations (neural ODEs) and scientific machine learning (SciML)

https://diffeq.sciml.ai/latest/

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Improve mass matrix error message #2145

Closed ChrisRackauckas closed 4 months ago

ChrisRackauckas commented 4 months ago

https://github.com/SciML/ModelingToolkit.jl/issues/2006

Checklist

[ ] Appropriate tests were added
[ ] Any code changes were done in a way that does not break public API
[ ] All documentation related to code changes were updated
[ ] The new code follows the contributor guidelines, in particular the SciML Style Guide and COLPRAC.
[ ] Any new documentation only uses public API

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