Bug 58654 - Trying to add System.Reactive NuGet package fails.
Summary: Trying to add System.Reactive NuGet package fails.
Status: RESOLVED UPSTREAM
Alias: None
Product: Workbooks & Inspector
Classification: Xamarin
Component: Client: Mac ()
Version: master
Hardware: PC Mac OS
: --- normal
Target Milestone: ---
Assignee: xamarininteractive
URL:
Depends on:
Blocks:
 
Reported: 2017-08-09 01:48 UTC by Miguel de Icaza [MSFT]
Modified: 2017-08-23 19:18 UTC (History)
2 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:


Attachments
Error message. (399.03 KB, image/png)
2017-08-09 01:48 UTC, Miguel de Icaza [MSFT]
Details


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Status:
RESOLVED UPSTREAM

Description Miguel de Icaza [MSFT] 2017-08-09 01:48:55 UTC
Created attachment 24088 [details]
Error message.

I tried adding the "System.Reactive 3.1.1" package to a Workbook using .NET Core profile and got this error that says that there is a circular dependency:
Comment 1 Matt Ward 2017-08-13 10:16:21 UTC
I suspect this may be a NuGet bug:

https://github.com/NuGet/Home/issues/5751
https://github.com/reactiveui/ReactiveUI/issues/1413

VS for Mac 7.0.1 has similar behaviour if you try to install the MvvmFormsBase 2.2.0-Alpha2 into an Android project:

Attempting to resolve dependencies for package 'MvvmFormsBase.2.2.0-Alpha2' with DependencyBehavior 'Lowest'
Circular dependency detected 'MvvmFormsBase 2.2.0-Alpha2 => System.Reactive 3.1.1 => System.Reactive.PlatformServices 4.0.0-preview00001 => System.Reactive 3.1.1'.

System.Reactive 3.1.1 has a dependency on System.Reactive.PlatformServices" >= "3.1.1". If NuGet's dependency lowest resolution behaviour is being used, which is what VS Mac uses, then NuGet should pick System.Reactive.PlatformServices 3.1.1 but for some reason does not.
Comment 2 Bojan Rajkovic [MSFT] 2017-08-23 19:18:08 UTC
Yeah, this looks like a NuGet bug, and it is not fixed in 4.3.0 final.

As a workaround, you can enable pre-release packages and install System.Reactive 4.0.0 preview, which won't have dependency issues.