Julia: [ Info: Precompiling DifferentialEquations [0c46a032-eb83-5123-abaf-570d42b7fbaa] ERROR: LoadError: UndefVarError: undefmatrix not defined

Can you try ]up and see if it’s good?

DiffEqSensitivity

Swap that for SciMLSensitivity. DiffEqSensitivity was deprecated more than a year ago. Remove it and upgrade the packages and you should get a much newer set.

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