I am trying to solve a DDEProblem in Julia, but I encounter the error no method matching _initialize_dae!. Could anyone explain why this happens and how to fix it?

Problem solving DDE: "no method matching _initialize_dae!"

ChrisRackauckas October 10, 2025, 2:14pm 2

Update your packages, we had a bad patch release yesterday and hotfixed it shortly after.

Topic		Replies	Views
DifferentialEquations and DAEProblem... strange error messages General Usage	5	825	August 31, 2019
Estimate parameters of a Delay Differential Equation Optimization (Mathematical) diffeq	6	875	June 24, 2019
Explicit Jacobian on DAEs? Numerics diffeq	72	4182	June 13, 2019
ModelingToolkit vs plain DifferentialEquations Modelling & Simulations differentialequation	12	1496	May 20, 2022
DAE problem set-up in DiffEq changed? General Usage	3	681	October 27, 2019