# Circular dependencies detected
**URL:** https://discourse.julialang.org/t/circular-dependencies-detected/135481
**Category:** General Usage
**Tags:** question, package, symbolics
**Created:** [February 5, 2026, 5:15pm UTC](https://discourse.julialang.org/t/circular-dependencies-detected/135481 "2026-02-05T17:15:54Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@ufechner7](https://discourse.julialang.org/u/ufechner7)
#### Post date: [February 5, 2026, 5:15pm UTC](https://discourse.julialang.org/t/circular-dependencies-detected/135481/1 "2026-02-05T17:15:54Z")
I am getting this warning:
```julia-auto
┌ Warning: Circular dependency detected.
│ Precompilation will be skipped for dependencies in this cycle:
│ ┌ Symbolics → SymbolicsPreallocationToolsExt
│ └─ Symbolics → SymbolicsForwardDiffExt
│ Precompilation will also be skipped for the following, which depend on the above cycle:
│ ModelingToolkit
│ KiteModels
│ ModelingToolkit → MTKChainRulesCoreExt
```
when installing/ updating KiteModels.jl (main branch) using Julia 1.10.
What could be the reason?
---
### Author:  [@Oscar\_Smith](https://discourse.julialang.org/u/Oscar_Smith)
#### Post date: [February 5, 2026, 5:36pm UTC](https://discourse.julialang.org/t/circular-dependencies-detected/135481/2 "2026-02-05T17:36:51Z")
see [Extension not loaded if trigger is a strong dependency [on 1.10] · Issue #55723 · JuliaLang/julia · GitHub](https://github.com/JuliaLang/julia/issues/55723). TLDR is that Julia 1.10 has a bug with package extensions.
---
### Author:  [@ufechner7](https://discourse.julialang.org/u/ufechner7)
#### Post date: [February 5, 2026, 5:42pm UTC](https://discourse.julialang.org/t/circular-dependencies-detected/135481/3 "2026-02-05T17:42:05Z")
So that is a bug in 1.10 that will not be fixed?
---
### Author:  [@Oscar\_Smith](https://discourse.julialang.org/u/Oscar_Smith)
#### Post date: [February 5, 2026, 5:44pm UTC](https://discourse.julialang.org/t/circular-dependencies-detected/135481/4 "2026-02-05T17:44:12Z")
yeah.