# On OS X Catalina, running 'solve' in DifferentialEquations causes crash

**URL:** <https://discourse.julialang.org/t/on-os-x-catalina-running-solve-in-differentialequations-causes-crash/42109>\
**Category:** General Usage\
**Created:** [June 26, 2020, 2:45pm UTC](https://discourse.julialang.org/t/on-os-x-catalina-running-solve-in-differentialequations-causes-crash/42109 "2020-06-26T14:45:46Z")\
**Posts on this page:** 1\
**Showing post:** 17

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**Author:** ![YingboMa](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/yingboma/32/2181_2.png) [@YingboMa](https://discourse.julialang.org/u/YingboMa)\
**Post date:** [June 29, 2020, 10:53pm UTC](https://discourse.julialang.org/t/on-os-x-catalina-running-solve-in-differentialequations-causes-crash/42109/17 "2020-06-29T22:53:24Z")

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What if you do `@btime solve($prob)`? It’s kind of weird that Julia 1.6 is much slower.

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_[View the full topic](https://discourse.julialang.org/t/on-os-x-catalina-running-solve-in-differentialequations-causes-crash/42109)._