Update: Thanks to JuliaRegistries/General#647, the version cap of the package Distributions has now been removed, so that one can directly install the package GLM along with Distributions v0.19.2.
Background
I’m reading the book Statistics with Julia, which makes use of GLM.
Problem
I encountered the following error, which I posted in the issue GLM.jl#311.
(v1.1) pkg> add GLM
Resolving package versions...
ERROR: Unsatisfiable requirements detected for package GLM [38e38edf]:
GLM [38e38edf] log:
├─possible versions are: [0.2.0-0.2.5, 0.3.0-0.3.2, 0.4.0-0.4.8, 0.5.0-0.5.6, 0
.6.0-0.6.1, 0.7.0, 0.8.0-0.8.1, 0.9.0, 0.10.0-0.10.1, 0.11.0, 1.0.0-1.0.2, 1.1.0
-1.1.1] or uninstalled
├─restricted to versions * by an explicit requirement, leaving only versions [0
.2.0-0.2.5, 0.3.0-0.3.2, 0.4.0-0.4.8, 0.5.0-0.5.6, 0.6.0-0.6.1, 0.7.0, 0.8.0-0.8
.1, 0.9.0, 0.10.0-0.10.1, 0.11.0, 1.0.0-1.0.2, 1.1.0-1.1.1]
├─restricted by compatibility requirements with DataFrames [a93c6f00] to versio
ns: [0.4.0-0.4.8, 0.5.0-0.5.6, 0.6.0-0.6.1, 0.7.0, 0.8.0-0.8.1, 0.9.0, 0.10.0-0.
10.1, 0.11.0, 1.0.0-1.0.2, 1.1.0-1.1.1] or uninstalled, leaving only versions: [
0.4.0-0.4.8, 0.5.0-0.5.6, 0.6.0-0.6.1, 0.7.0, 0.8.0-0.8.1, 0.9.0, 0.10.0-0.10.1,
0.11.0, 1.0.0-1.0.2, 1.1.0-1.1.1]
│ └─DataFrames [a93c6f00] log:
│ ├─possible versions are: [0.1.0, 0.2.0-0.2.5, 0.3.0-0.3.16, 0.4.0-0.4.3, 0.
5.0-0.5.12, 0.6.0-0.6.11, 0.7.0-0.7.8, 0.8.0-0.8.5, 0.9.0-0.9.1, 0.10.0-0.10.1,
0.11.0-0.11.7, 0.12.0, 0.13.0-0.13.1, 0.14.0-0.14.1, 0.15.0-0.15.2, 0.16.0, 0.17
.0-0.17.1, 0.18.0-0.18.2] or uninstalled
│ └─restricted to versions 0.18.2 by an explicit requirement, leaving only ve
rsions 0.18.2
├─restricted by compatibility requirements with StatsBase [2913bbd2] to version
s: [0.11.0, 1.0.0-1.0.2, 1.1.0-1.1.1] or uninstalled, leaving only versions: [0.
11.0, 1.0.0-1.0.2, 1.1.0-1.1.1]
│ └─StatsBase [2913bbd2] log:
│ ├─possible versions are: [0.1.0, 0.2.0-0.2.1, 0.2.3-0.2.10, 0.3.0-0.3.13, 0
.4.0-0.4.4, 0.5.0-0.5.3, 0.6.0-0.6.16, 0.7.0-0.7.4, 0.8.0-0.8.3, 0.9.0, 0.10.0,
0.11.0-0.11.1, 0.12.0, 0.13.0-0.13.1, 0.14.0-0.14.1, 0.15.0, 0.16.0-0.16.1, 0.17
.0, 0.18.0, 0.19.0-0.19.5, 0.20.0-0.20.1, 0.22.0, 0.23.0-0.23.1, 0.24.0, 0.25.0,
0.26.0, 0.27.0, 0.28.0-0.28.1, 0.29.0, 0.30.0] or uninstalled
│ └─restricted to versions 0.30.0 by an explicit requirement, leaving only ve
rsions 0.30.0
└─restricted by compatibility requirements with Distributions [31c24e10] to ver
sions: uninstalled — no versions left
└─Distributions [31c24e10] log:
├─possible versions are: [0.1.0-0.1.4, 0.2.0-0.2.13, 0.3.0, 0.6.4-0.6.7, 0.
7.0-0.7.6, 0.8.0-0.8.10, 0.9.0, 0.10.0-0.10.2, 0.11.0-0.11.1, 0.12.0-0.12.5, 0.1
3.0, 0.14.0-0.14.2, 0.15.0, 0.16.0-0.16.4, 0.17.0, 0.18.0, 0.19.1-0.19.2] or uni
nstalled
└─restricted to versions 0.19.2 by an explicit requirement, leaving only ve
rsions 0.19.2
Discussion
Although the packages StatsBase and DataFrames appear in the above error message, the cause of this problem was actually the package Distributions.
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