# Importing \`DifferentialEquations\` and \`BifurcationKit\` together unpredictably fails
**URL:** https://discourse.julialang.org/t/importing-differentialequations-and-bifurcationkit-together-unpredictably-fails/130831
**Category:** Pluto
**Tags:** package, differentialequation, bifurcationkit
**Created:** [July 18, 2025, 1:09am UTC](https://discourse.julialang.org/t/importing-differentialequations-and-bifurcationkit-together-unpredictably-fails/130831 "2025-07-18T01:09:23Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@lpz18](https://discourse.julialang.org/u/lpz18)
#### Post date: [July 18, 2025, 1:09am UTC](https://discourse.julialang.org/t/importing-differentialequations-and-bifurcationkit-together-unpredictably-fails/130831/1 "2025-07-18T01:09:23Z")
Importing `DifferentialEquations` and `BifurcationKit` together unpredictably fails.
I have 3 pluto notebooks: a new one (A), an “intermediate” one (B), and an old one (C)
The notebooks import many packages but I isolated the problem to the interaction of `DifferentialEquations` and `BifurcationKit`.
All three notebooks import both packages. I have been using B continuously for a while (\>1 year) and it imports both packages without an issue. I went to check old code in C and it would not run because the packages failed to compile together. I tried making a clean notebook, A, to run the old code and simply re-produced the error I got in C.
Any ideas why this is happening and more importantly any suggestions for how to fix it?
Thanks!
---
### Author:  [@lpz18](https://discourse.julialang.org/u/lpz18)
#### Post date: [July 18, 2025, 1:24am UTC](https://discourse.julialang.org/t/importing-differentialequations-and-bifurcationkit-together-unpredictably-fails/130831/2 "2025-07-18T01:24:27Z")
I was originally
```julia
using DifferentialEquations
import BifurcationKit
```
and for some reason, changing it to
```julia
using DifferentialEquations
using BifurcationKit
```
solved my problem
---
### Author:  [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [July 18, 2025, 2:03am UTC](https://discourse.julialang.org/t/importing-differentialequations-and-bifurcationkit-together-unpredictably-fails/130831/3 "2025-07-18T02:03:34Z")
What’s the error?
---
### Author:  [@lpz18](https://discourse.julialang.org/u/lpz18)
#### Post date: [July 19, 2025, 3:16pm UTC](https://discourse.julialang.org/t/importing-differentialequations-and-bifurcationkit-together-unpredictably-fails/130831/4 "2025-07-19T15:16:09Z")
it failed to compile BifurcationKit, I think specifically the PlotsExt, but can’t recall exactly and I cannot reproduce it this morning.
I wonder if there was some caching issue leading to old versions being used by Pluto’s package manager.
Even while I was experiencing the failure in Pluto I was able to compile the packages in the julia REPL
---
### Author:  [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [July 19, 2025, 3:28pm UTC](https://discourse.julialang.org/t/importing-differentialequations-and-bifurcationkit-together-unpredictably-fails/130831/5 "2025-07-19T15:28:59Z")
Sharing the full notebook would help.
---
### Author:  [@rveltz](https://discourse.julialang.org/u/rveltz)
#### Post date: [July 19, 2025, 3:36pm UTC](https://discourse.julialang.org/t/importing-differentialequations-and-bifurcationkit-together-unpredictably-fails/130831/6 "2025-07-19T15:36:09Z")
the docs are built at each commit, at least tbe corresponding pzckage versions would work. however, without the error message, it is difficult to help as Chris said