Mismatch error when using the ODESystem and ODEProblem to convert DAE system to ODE system

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1

I have used the ODESystem and ODEProblem to convert the DAE system into ODE system in Julia. It works well for the systems with 10 and 54 equations, but when I tried for the larger system with 88 or 198 equations it has the error below:

ArgumentError: Equations (88), states (84), and initial conditions (84) are of different lengths. To allow a different number of equations than states use kwarg check_length=false.

Even though I have checked the length of u0, it is equal to the length of the equations.
Because my model is quite complex and has a lot of parameters, I have used out-of-place functions instead of in-place functions, which are used in DAEProblem and SteadyStateProblem.
Example for equations in the model:

eq1 = [D(delta[i]) ~ omega[i] for i in 1:m]
...
eqs = [eq1; eq2; eq3; ...; eq10]

The part of my model is shown below:
Screenshot

Please help me on how to fix it.
Thank you for your time and consideration.

2

Can you post an MWE?

3

Yes, there are the model file and its dataset directly to your message box. Please help me to check that.

4

I’ve resolved the issue. The problem was that several equations only contained constants without any variables because I made mistakes when implementing the parameters. For example, It had an equation like 0 = -1.2. When using the ODESystem to create the ODE, the tool dropped these equations and turned them into observed equations, causing a mismatch in dimension. I’ve double-checked everything, and now the system has been successfully created. Thank you for your consideration.