Plots v1.34.1 - Cannot Precompile in new project environment

[paschermayr]

Hi there,

1. I am unable to precompile Plots.jl on Windows-Julia 1.7.3 in a new project environment with only Plots.jl installed.

      Status `XXXX\projects\TestProject\Project.toml`
  [91a5bcdd] Plots v1.34.1

Error Message when trying to use Plots.jl:

GKS: cairoplugin.dll: can't load library, error 126 (0x7e)
ERROR: LoadError: SystemError: opening file "XXXX\\AppData\\Local\\Temp\\jl_g5Ue4As5MP.png": No such file or directory
Stacktrace:
  [1] systemerror(p::String, errno::Int32; extrainfo::Nothing)

I tried to solve this via Pkg.build("GR") from previous suggestions, but it did not help either.

2. Actually, I wanted to submit another issue for Plots v1.34.0, where the ylabel could no longer be chosen as a symbol, but the package was updated so fast I did not manage to submit. Would this work in Plots v1.34.1?:

using Plots
plot(1,2; ylabel = :test)

Best regards,
Patrick

[t-bltg]

2. Would this work in Plots v1.34.1

using Plots
plot(1,2; ylabel = :test)

No, do you know which Plots version supported this, if any ?

1. GKS: cairoplugin.dll: can't load library, error 126 (0x7e)

@paschermayr, does pinning Plots@1.34.0 work ?

@jheinen, even though GR@master test suite is green for windows, this does sound related to the GR changes we did in 0.68 - 0.69.

Since I'm not a windows user, do you have a hint ?

[paschermayr]

No, do you know which Plots version supported this, if any ?

Yes, 1.33.0 and below should support this. I do not know when this was introduced, but I used symbols as labels in my code for at least a year now.

@paschermayr, does pinning Plots@1.34.0 work ?

Yes, then I can use Plots again. However, using a symbol for labels does not work here anymore as before (version 1.33.0 and below). In a fresh environment:

Pkg.pin(name="Plots", version="1.34.0")
using Plots

plot(1,2) #working
plot(1,2; ylabel = :testing) #not working

MethodError: no method matching iterate(::Symbol)
Closest candidates are:
  iterate(!Matched::Union{LinRange, StepRangeLen}) at C:\Users\Pasch\AppData\Local\Programs\Julia-1.7.3\share\julia\base\range.jl:826
  iterate(!Matched::Union{LinRange, StepRangeLen}, !Matched::Integer) at C:\Users\Pasch\AppData\Local\Programs\Julia-1.7.3\share\julia\base\range.jl:826
  iterate(!Matched::T) where T<:Union{Base.KeySet{<:Any, <:Dict}, Base.ValueIterator{<:Dict}} at C:\Users\Pasch\AppData\Local\Programs\Julia-1.7.3\share\julia\base\dict.jl:695
  ...

[t-bltg]

Thanks for narrowing the version. @paschermayr, I remember having introduced this in a recent PR.

This is fixed by #4383 and now covered in tests.

[jheinen]

f981497 should fix this problem.

[t-bltg]

The offending version is blacklisted (] rm Plots and ] add Plots should install 1.34.0 instead of 1.34.1), and the label issue is fixed, so I'm closing this (a new Plots version should be released soon).

[ElOceanografo]

I just ran into a similar problem after adding Plots (v1.34.3) to a fresh environment on Windows 10, with Julia 1.8.1. Getting

GKS: svgplugin.dll: can't load library, error 126 (0x7e)
Error showing value of type Plots.Plot{Plots.GRBackend}:
[...]

This only happens when trying to plot in VSCode...plots from a plain Julia REPL show up fine.

Plotting works again after downgrading to v1.34.2.