Could not import OrdinaryDiffEq.SavedValues into ControlSystems

HerAdri · May 29, 2023, 8:15am

What does this alert mean and how to resolve it?

julia> using ControlSystems
[ Info: Precompiling ControlSystems [a6e380b2-a6ca-5380-bf3e-84a91bcd477e]
WARNING: could not import OrdinaryDiffEq.SavedValues into ControlSystems
WARNING: could not import OrdinaryDiffEq.SavingCallback into ControlSystems

Julia Version 1.9.0
Commit 8e63055292 (2023-05-07 11:25 UTC)
Platform Info:
  OS: Windows (x86_64-w64-mingw32)
  CPU: 4 × Intel(R) Core(TM) i5-4570 CPU @ 3.20GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-14.0.6 (ORCJIT, haswell)
  Threads: 1 on 4 virtual cores

ChrisRackauckas · May 29, 2023, 1:28pm

@baggepinnen those don’t exist in OrdinaryDiffEq, those exist in DiffEqCallbacks.

baggepinnen · May 30, 2023, 1:27pm

They are imported fro DiffEqCallbacks as well, so I’m not quite sure what the problem is

github.com

JuliaControl/ControlSystems.jl/blob/master/src/ControlSystems.jl#L12


      
          
          
using Reexport
          @reexport using ControlSystemsBase
          using ControlSystemsBase: issiso, ninputs, noutputs, nstates, numeric_type
          
          

          
using LinearAlgebra
          import OrdinaryDiffEq
          import LinearAlgebra: BlasFloat
          import Hungarian # For pole assignment in rlocusplot
          import DiffEqCallbacks: SavingCallback, SavedValues
          import DelayDiffEq
          using SparseArrays
          using StaticArrays
          using RecipesBase
          using Printf
          
          
export Simulator, rlocus, rlocusplot
          
          
include("timeresp.jl")
          include("simulators.jl")

baggepinnen · May 30, 2023, 3:57pm

Turns out there was erroneous duplicated imports in another file, should be fixed by

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Could not import OrdinaryDiffEq.SavedValues into ControlSystems

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