# Can't compile DiffEqParamEstim
**URL:** https://discourse.julialang.org/t/cant-compile-diffeqparamestim/45004
**Category:** New to Julia
**Tags:** question
**Created:** [August 15, 2020, 5:26pm UTC](https://discourse.julialang.org/t/cant-compile-diffeqparamestim/45004 "2020-08-15T17:26:02Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Sanji\_Vinsmoke](https://discourse.julialang.org/u/Sanji_Vinsmoke)
#### Post date: [August 15, 2020, 5:26pm UTC](https://discourse.julialang.org/t/cant-compile-diffeqparamestim/45004/1 "2020-08-15T17:26:03Z")
Hi,
I can’t compile DiffEqParamEstim in my PC.
when I typed `using DiffEqParamEsitm` for the first time, I got
> [Info: Precompiling DiffEqParamEstim [1130ab10-4a5a-5621-a13d-e4788d82bd4c]
> WARNING: could not import LearnBase.addgrad! into PenaltyFunctions
> WARNING: could not import LearnBase.scaled into PenaltyFunctions
and then it was stuck.
I am using `julia version 1.5.0`
How can this be fixed?
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### Author:  [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [August 15, 2020, 6:11pm UTC](https://discourse.julialang.org/t/cant-compile-diffeqparamestim/45004/2 "2020-08-15T18:11:46Z")
What do you mean it was stuck? It looks like it’s just precompiling the whole software stack which, as a big chunk of software, might take a minute or a few.
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### Author:  [@Sanji\_Vinsmoke](https://discourse.julialang.org/u/Sanji_Vinsmoke)
#### Post date: [August 15, 2020, 6:44pm UTC](https://discourse.julialang.org/t/cant-compile-diffeqparamestim/45004/3 "2020-08-15T18:44:24Z")
I waited for like 10-15 mins.
Also, are the warnings harmful to hinder the working of the package?
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### Author:  [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [August 15, 2020, 9:59pm UTC](https://discourse.julialang.org/t/cant-compile-diffeqparamestim/45004/5 "2020-08-15T21:59:57Z")
Good to hear it finally compiled. However, in general, note that this is somewhat deprecated in favor of DiffEqFlux.jl:
[https://diffeqflux.sciml.ai/dev/](https://diffeqflux.sciml.ai/dev/)
Which is a much more powerful and flexible parameter estimation system, so I’d recommend moving to that. I’ll have to get the docs updated sometime.