could not load library "libRmath-julia"

[fredRos]

This seems similar to #513 where it says this has been fixed. I'm running julia 0.5 with Pkg.update() executed today

julia> Pkg.status("Distributions")
 - Distributions                 0.8.9
 - Rmath                         0.1.4
 - StatsFuns                     0.2.2
 - Distributions                 0.8.9

julia> rand(Distributions.Gamma(1.5, 60))
ERROR: error compiling rand: could not load library "libRmath-julia"
libRmath-julia.so: cannot open shared object file: No such file or directory

Any ideas? Rmath seems to be there, how come it cannot be loaded?

[simonbyrne]

Can you try Pkg.build("Rmath")?

[fredRos]

I did, that didn't fix it. I even followed https://github.com/JuliaStats/Rmath.jl and did

Pkg.add("Rmath")
Pkg.build("Rmath")
import Rmath: libRmath
libRmath

That worked w/o error but with Distributions, I still get same error message as above. I also restarted julia but that didn't help either

[fredRos]

As a workaround, I used scipy and that worked

import PyCall
PyCall.@pyimport scipy.stats as stats
dist0 = stats.gamma(α0, scale=1/β0)
dist0[:rvs](size=1000)

[simonbyrne]

Hmm for some reason you seem to be stuck using an old version of Distributions and StatsFuns.

[simonbyrne]

What does your full Pkg.status() say?

[fredRos]

julia>  Pkg.status()
19 required packages:
 - Atom                          0.5.6
 - Autoreload                    0.2.0+             master
 - ConjugatePriors               0.1.2
 - Cubature                      1.2.0
 - Distributions                 0.8.9
 - GR                            0.18.0
 - GSL                           0.3.5
 - HDF5                          0.7.0
 - IJulia                        1.3.2
 - Klara                         0.7.0
 - NLopt                         0.3.3
 - Optim                         0.6.1
 - Plots                         0.10.1+            master
 - Polynomials                   0.1.1
 - PyPlot                        2.2.4
 - ReverseDiffSource             0.3.0
 - Rmath                         0.1.4
 - StatPlots                     0.2.0
 - StatsFuns                     0.2.2
73 additional packages:
 - ASTInterpreter                0.0.4
 - AbstractTrees                 0.0.4
 - ArgParse                      0.4.0
 - ArrayViews                    0.6.4
 - AxisAlgorithms                0.1.5
 - BinDeps                       0.4.5
 - Blink                         0.4.4
 - Blosc                         0.1.7
 - COFF                          0.0.2
 - CRC                           1.2.0
 - Calculus                      0.1.15
 - CodeTools                     0.4.3
 - Codecs                        0.2.0
 - ColorTypes                    0.2.12
 - Colors                        0.6.9
 - Compat                        0.9.5
 - Conda                         0.4.0
 - DWARF                         0.1.0
 - DataArrays                    0.3.10
 - DataFrames                    0.8.5
 - ELF                           0.1.0
 - FileIO                        0.2.0
 - FixedPointNumbers             0.2.1
 - FixedSizeArrays               0.2.5
 - Formatting                    0.2.0
 - ForwardDiff                   0.2.5
 - GZip                          0.2.20
 - Gallium                       0.0.4
 - Hiccup                        0.0.3
 - HttpCommon                    0.2.6
 - HttpParser                    0.2.0
 - HttpServer                    0.1.7
 - Interpolations                0.3.6
 - Iterators                     0.2.0
 - JSON                          0.8.0
 - JuliaParser                   0.7.4
 - Juno                          0.2.5
 - KernelDensity                 0.3.0
 - LNR                           0.0.2
 - LaTeXStrings                  0.2.0
 - Lazy                          0.11.4
 - MachO                         0.0.4
 - MacroTools                    0.3.2
 - MathProgBase                  0.5.7
 - MbedTLS                       0.3.0
 - Measures                      0.0.3
 - Media                         0.2.4
 - Mustache                      0.1.2
 - Mux                           0.2.2
 - NaNMath                       0.2.2
 - Nettle                        0.2.4
 - ObjFileBase                   0.0.4
 - PDMats                        0.3.6
 - PlotThemes                    0.1.0
 - PlotUtils                     0.2.0
 - PositiveFactorizations        0.0.3
 - PyCall                        1.7.2
 - Ratios                        0.0.4
 - Reactive                      0.3.6
 - RecipesBase                   0.1.0
 - Reexport                      0.0.3
 - SHA                           0.3.0
 - Showoff                       0.0.7
 - SortingAlgorithms             0.1.0
 - StatsBase                     0.11.1
 - StructIO                      0.0.2
 - TerminalUI                    0.0.2
 - TextWrap                      0.1.6
 - URIParser                     0.1.6
 - VT100                         0.0.2
 - WebSockets                    0.2.1
 - WoodburyMatrices              0.2.0
 - ZMQ                           0.4.0

[simonbyrne]

The problem appears to be ConjugatePriors: it has an upper bound on PDMats, which in turn constrains the version of Distributions that can be installed.

Pkg.rm("ConjugatePriors") should fix your problem.

[fredRos]

Ok, thanks for analyzing this and reporting an issue in the right place!