Trying to add DifferentialEquations with DynamicalSystems installed results in a package requirements error in 0.6.2: julia> Pkg.add("DifferentialEquations") ERROR: resolve is unable to satisfy package requirements. The problem was detected when trying to find a feasible version for package Dyn…

The package resolver just isn’t able to find out what the problem package is, but it’s not one of those two. What’s your Pkg.status()? Maybe I will see something, but this can be a really hard to problem to resolve. My best guess is that something is upper bounding Optim.jl or NLsolve.jl due to its …

julia> Pkg.status() 43 required packages: - AmplNLWriter 0.4.0 - Atom 0.6.8 - BenchmarkTools 0.2.4 - CoinOptServices 0.3.0 - Conda 0.7.1 - DataFrames 0.11.5 - DataFramesMeta …

I don’t see it. Honestly, the only way I know to debug this is to remove .julia/v0.6 and add packages back one-by-one and see what downgrades it.

I guess I’ll try that. :frowning_face:

Maybe this helps: I just got a similar problem when installing DifferentialEquations (in my case it complained about DiffEqDevTools). Increasing JULIA_PKGRESOLVE_ACCURACY to 3 (i.e. ENV["JULIA_PKGRESOLVE_ACCURACY"] = 3) solved the issue.

I’m having the same problem, though the “offending” package is DiffEqUncertainty. This problem occurred on my personal MacOS environment and a corporate Windows machine. Strangely, @AleMorales suggestion fixed the issue on Windows but not MacOS.

Try assigning a higher value to ENV["JULIA_PKGRESOLVE_ACCURACY"]. Today I had to use a value of 5 to resolve Pkg.add("Coverage"), I am not sure what is happening with the the dependencies lately, I never had this problem until 10 days ago. I think that the problem is going to depend on which package…

DiffEq added a bunch of upper bounds so that way the old syntax (t,u,du) would not mix with packages on the new syntax (du,u,p,t) since that would just be broken. However, it looks like that resolver is no able to easily find out that it can “jump up” to the next major version on all of these packag…

Thanks @AleMorales that worked!

Cannot add DifferentialEquations

General Usage

baggepinnen January 29, 2018, 10:05am 6

You can always try this How to find package preventing others from updating

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Cannot add DifferentialEquations

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