Unsatisfiable requirement to uninstalled?

General Usage
1

Hello,

I have this weird error when trying to resolve the manifest of a main package (ReinforcementLearning) that I deved.

(ReinforcementLearning) pkg> resolve
ERROR: Unsatisfiable requirements detected for package LineSearches [d3d80556]:
 LineSearches [d3d80556] log:
 ├─possible versions are: 7.0.0-7.1.1 or uninstalled
 ├─restricted by compatibility requirements with Optim [429524aa] to versions: 7.0.0-7.1.1
 │ └─Optim [429524aa] log:
 │   ├─possible versions are: 0.15.3-1.7.0 or uninstalled
 │   ├─restricted to versions * by ReinforcementLearningZoo [d607f57d], leaving only versions 0.15.3-1.7.0
 │   │ └─ReinforcementLearningZoo [d607f57d] log:
 │   │   ├─possible versions are: 0.6.0 or uninstalled
 │   │   ├─restricted to versions 0.6 by ReinforcementLearning [158674fc], leaving only versions 0.6.0
 │   │   │ └─ReinforcementLearning [158674fc] log:
 │   │   │   ├─possible versions are: 0.11.0 or uninstalled
 │   │   │   └─ReinforcementLearning [158674fc] is fixed to version 0.11.0
 │   │   └─ReinforcementLearningZoo [d607f57d] is fixed to version 0.6.0
 │   ├─restricted by compatibility requirements with StatsBase [2913bbd2] to versions: [0.15.3, 0.20.5-1.7.0] or uninstalled, leaving only versions: [0.15.3, 0.20.5-1.7.0]
 │   │ └─StatsBase [2913bbd2] log:
 │   │   ├─possible versions are: 0.24.0-0.33.18 or uninstalled
 │   │   ├─restricted to versions * by ReinforcementLearningEnvironments [25e41dd2], leaving only versions 0.24.0-0.33.18
 │   │   │ └─ReinforcementLearningEnvironments [25e41dd2] log:
 │   │   │   ├─possible versions are: 0.7.0 or uninstalled
 │   │   │   ├─restricted to versions 0.7 by ReinforcementLearning [158674fc], leaving only versions 0.7.0
 │   │   │   │ └─ReinforcementLearning [158674fc] log: see above
 │   │   │   └─ReinforcementLearningEnvironments [25e41dd2] is fixed to version 0.7.0
 │   │   ├─restricted to versions 0.32-0.33 by ReinforcementLearningCore [de1b191a], leaving only versions 0.32.0-0.33.18
 │   │   │ └─ReinforcementLearningCore [de1b191a] log:
 │   │   │   ├─possible versions are: 0.9.0 or uninstalled
 │   │   │   ├─restricted to versions 0.9 by ReinforcementLearning [158674fc], leaving only versions 0.9.0
 │   │   │   │ └─ReinforcementLearning [158674fc] log: see above
 │   │   │   └─ReinforcementLearningCore [de1b191a] is fixed to version 0.9.0
 │   │   ├─restricted to versions 0.33 by ReinforcementLearningZoo [d607f57d], leaving only versions 0.33.0-0.33.18
 │   │   │ └─ReinforcementLearningZoo [d607f57d] log: see above
 │   │   └─restricted to versions 0.33.18 by an explicit requirement, leaving only versions 0.33.18
 │   ├─restricted by compatibility requirements with Calculus [49dc2e85] to versions: 0.19.2-1.7.0 or uninstalled, leaving only versions: 0.20.5-1.7.0
 │   │ └─Calculus [49dc2e85] log:
 │   │   ├─possible versions are: 0.4.1-0.5.1 or uninstalled
 │   │   └─restricted to versions 0.5.1 by an explicit requirement, leaving only versions 0.5.1
 │   └─restricted by compatibility requirements with NaNMath [77ba4419] to versions: 1.6.2-1.7.0 or uninstalled, leaving only versions: 1.6.2-1.7.0
 │     └─NaNMath [77ba4419] log:
 │       ├─possible versions are: 0.3.2-1.0.0 or uninstalled
 │       └─restricted to versions 1.0.0 by an explicit requirement, leaving only versions 1.0.0
 └─restricted by compatibility requirements with NaNMath [77ba4419] to versions: uninstalled — no versions left
   └─NaNMath [77ba4419] log: see above

This is not very convenient without the coloring but basically its seems to boil down to Optim needs NaNMath and LineSearches, but NaNMath needs LineSearches uninstalled (???). This can’t be right.

2

The problem is that LineSearches does not support NaNMath@1, and something in your environment requires NaNMath@1.

3

Thank you. I did up NaNMath to see what would happen and it did [77ba4419] ↓ NaNMath v1.0.0 ⇒ v0.3.7, among other things. Now the primary package loads correctly.