# Problem in using "continuous\_events" in ModelingToolkit

**URL:** <https://discourse.julialang.org/t/problem-in-using-continuous-events-in-modelingtoolkit/76280>\
**Category:** VS Code\
**Tags:** modelingtoolkit\
**Created:** [February 12, 2022, 4:02am UTC](https://discourse.julialang.org/t/problem-in-using-continuous-events-in-modelingtoolkit/76280 "2022-02-12T04:02:40Z")\
**Posts on this page:** 12\
**Page:** 1

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**Author:** ![anandpathak31](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/anandpathak31/32/33527_2.png) [@anandpathak31](https://discourse.julialang.org/u/anandpathak31)\
**Post date:** [February 12, 2022, 4:02am UTC](https://discourse.julialang.org/t/problem-in-using-continuous-events-in-modelingtoolkit/76280/1 "2022-02-12T04:02:40Z")

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Hi, I am not able to use the `continuous_events` feature of ModelingToolkit for creating `ODESystem` in VScode. It worked perfectly fine on Pluto but same code in VScode gives this error :

```julia
LoadError: MethodError: no method matching ODESystem(::Vector{Equation}, ::Num, ::Vector{Num}, ::Vector{Num}; continuous_events=Pair{Vector{Equation}, Vector{Equation}}[[V(t) ~ θ] => [V(t) ~ Vᵣₑₛ, z(t) ~ G_syn]], name=:nrn1)
Closest candidates are:
  ODESystem(::AbstractVector{var"#s6"} where var"#s6"<:Equation, ::Any, ::Any, ::Any; controls, observed, systems, name, default_u0, default_p, defaults, connection_type, preface, checks) at /shared/home/anand/.julia/packages/ModelingToolkit/P76eb/src/systems/diffeqs/odesystem.jl:102 got unsupported keyword argument "continuous_events"

```

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<div class="post-metadata">

**Author:** ![anandpathak31](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/anandpathak31/32/33527_2.png) [@anandpathak31](https://discourse.julialang.org/u/anandpathak31)\
**Post date:** [February 12, 2022, 4:17am UTC](https://discourse.julialang.org/t/problem-in-using-continuous-events-in-modelingtoolkit/76280/2 "2022-02-12T04:17:55Z")

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@baggepinnen @ChrisRackauckas

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<div class="post-metadata">

**Author:** ![ptoche](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ptoche/32/23554_2.png) [@ptoche](https://discourse.julialang.org/u/ptoche)\
**Post date:** [February 12, 2022, 6:43am UTC](https://discourse.julialang.org/t/problem-in-using-continuous-events-in-modelingtoolkit/76280/3 "2022-02-12T06:43:57Z")

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The same package versions?

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<div class="post-metadata">

**Author:** ![ChrisRackauckas](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/chrisrackauckas/32/77_2.png) [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)\
**Post date:** [February 12, 2022, 12:01pm UTC](https://discourse.julialang.org/t/problem-in-using-continuous-events-in-modelingtoolkit/76280/4 "2022-02-12T12:01:33Z")

</div>

This is on the latest MTK?

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<div class="post-metadata">

**Author:** ![anandpathak31](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/anandpathak31/32/33527_2.png) [@anandpathak31](https://discourse.julialang.org/u/anandpathak31)\
**Post date:** [February 12, 2022, 1:37pm UTC](https://discourse.julialang.org/t/problem-in-using-continuous-events-in-modelingtoolkit/76280/5 "2022-02-12T13:37:43Z")

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Yes, I did a Pkg.update() on the VScode environment. Both the environments have Julia 1.6.5. Pluto was run on my local machine and VScode was run on a remote server.

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<div class="post-metadata">

**Author:** ![ChrisRackauckas](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/chrisrackauckas/32/77_2.png) [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)\
**Post date:** [February 12, 2022, 1:43pm UTC](https://discourse.julialang.org/t/problem-in-using-continuous-events-in-modelingtoolkit/76280/6 "2022-02-12T13:43:31Z")

</div>

Show `]st`

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<div class="post-metadata">

**Author:** ![anandpathak31](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/anandpathak31/32/33527_2.png) [@anandpathak31](https://discourse.julialang.org/u/anandpathak31)\
**Post date:** [February 12, 2022, 1:48pm UTC](https://discourse.julialang.org/t/problem-in-using-continuous-events-in-modelingtoolkit/76280/7 "2022-02-12T13:48:09Z")

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```julia
Status `~/.julia/environments/v1.6/Project.toml`
  [717857b8] DSP v0.7.3
  [a93c6f00] DataFrames v1.3.2
  [31c24e10] Distributions v0.25.23
  [7a1cc6ca] FFTW v1.4.5
  [f6369f11] ForwardDiff v0.10.22
  [14197337] GenericLinearAlgebra v0.2.7
  [c7f686f2] MCMCChains v5.0.1
  [961ee093] ModelingToolkit v6.7.1
  [1dea7af3] OrdinaryDiffEq v5.71.0
  [91a5bcdd] Plots v1.23.2
  [c3e4b0f8] Pluto v0.16.1
  [f3b207a7] StatsPlots v0.14.28
  [29a0d76e] StochasticDelayDiffEq v1.1.1
  [0c5d862f] Symbolics v3.5.1
  [fce5fe82] Turing v0.18.0
  [8bb1440f] DelimitedFiles

```

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<div class="post-metadata">

**Author:** ![ChrisRackauckas](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/chrisrackauckas/32/77_2.png) [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)\
**Post date:** [February 12, 2022, 1:50pm UTC](https://discourse.julialang.org/t/problem-in-using-continuous-events-in-modelingtoolkit/76280/8 "2022-02-12T13:50:19Z")

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> [@anandpathak31](#):
>
> `[961ee093] ModelingToolkit v6.7.1`

Please update to v8.

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<div class="post-metadata">

**Author:** ![anandpathak31](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/anandpathak31/32/33527_2.png) [@anandpathak31](https://discourse.julialang.org/u/anandpathak31)\
**Post date:** [February 12, 2022, 1:51pm UTC](https://discourse.julialang.org/t/problem-in-using-continuous-events-in-modelingtoolkit/76280/9 "2022-02-12T13:51:05Z")

</div>

I did Pkg.update(). Any other way to update specifically?

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<div class="post-metadata">

**Author:** ![anandpathak31](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/anandpathak31/32/33527_2.png) [@anandpathak31](https://discourse.julialang.org/u/anandpathak31)\
**Post date:** [February 12, 2022, 2:19pm UTC](https://discourse.julialang.org/t/problem-in-using-continuous-events-in-modelingtoolkit/76280/10 "2022-02-12T14:19:02Z")

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This is the new status after updating. ModelingToolkit is v8.4 but still the error persists.

```julia
 Status `~/.julia/environments/v1.6/Project.toml`
  [717857b8] DSP v0.7.4
  [a93c6f00] DataFrames v1.3.2
  [31c24e10] Distributions v0.25.48
  [7a1cc6ca] FFTW v1.4.5
  [f6369f11] ForwardDiff v0.10.25
  [14197337] GenericLinearAlgebra v0.2.7
  [c7f686f2] MCMCChains v5.0.3
  [961ee093] ModelingToolkit v8.4.0
  [1dea7af3] OrdinaryDiffEq v6.6.6
  [91a5bcdd] Plots v1.25.9
  [c3e4b0f8] Pluto v0.18.0
  [f3b207a7] StatsPlots v0.14.33
  [29a0d76e] StochasticDelayDiffEq v1.2.2
  [0c5d862f] Symbolics v4.3.0
  [fce5fe82] Turing v0.20.1
  [8bb1440f] DelimitedFiles

```

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<div class="post-metadata">

**Author:** ![anandpathak31](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/anandpathak31/32/33527_2.png) [@anandpathak31](https://discourse.julialang.org/u/anandpathak31)\
**Post date:** [February 12, 2022, 2:20pm UTC](https://discourse.julialang.org/t/problem-in-using-continuous-events-in-modelingtoolkit/76280/11 "2022-02-12T14:20:48Z")

</div>

I had removed the Registry and did Pkd.update again.

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<div class="post-metadata">

**Author:** ![ChrisRackauckas](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/chrisrackauckas/32/77_2.png) [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)\
**Post date:** [February 12, 2022, 2:21pm UTC](https://discourse.julialang.org/t/problem-in-using-continuous-events-in-modelingtoolkit/76280/12 "2022-02-12T14:21:27Z")

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Make sure you’re in a fresh REPL session.