Bug 34897 - Can't reference PCL from Apple Watch Extension
Summary: Can't reference PCL from Apple Watch Extension
Alias: None
Product: iOS
Classification: Xamarin
Component: General ()
Version: XI 9.3 (xcode 7.1 previews)
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: WatchOS 2.0
Assignee: Bugzilla
Depends on:
Reported: 2015-10-15 05:50 UTC by Tom Gilder
Modified: 2015-11-03 09:43 UTC (History)
5 users (show)

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

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Description Tom Gilder 2015-10-15 05:50:51 UTC
With the latest preview release of watchOS 2 support, you can't reference PCL projects from the watchOS Extension project.

Error: "Incompatible target framework: .NETPortable,Version=v4.5,Profile=Profile78"


1. Create iOS solution
2. Add watchOS 2 project
3. Add PCL project
4. Try to add reference to PCL from watchOS project

Xamarin Studio 
Mono 4.2.1
Comment 1 Jeffrey Stedfast 2015-10-16 13:07:39 UTC
I'm pretty sure that if Xamarin.WatchOS is supposed to be compatible with that PCL profile, then the Xamarin.iOS product needs to install the proper framework xml files, so I don't think this is a bug in Xamarin Studio.
Comment 2 Rolf Bjarne Kvinge [MSFT] 2015-10-16 14:02:53 UTC
@Jeff, what's the proper framework xml files? WatchOS does exactly the same thing iOS does.
Comment 3 Jeffrey Stedfast 2015-10-16 14:50:26 UTC
I don't know.
Comment 4 Rolf Bjarne Kvinge [MSFT] 2015-10-19 05:36:57 UTC
@Michael, do you know what we have to do for watchOS projects to be able to reference PCL projects? Or do you know who might know?
Comment 5 Mikayla Hutchinson [MSFT] 2015-10-27 18:34:26 UTC
@rolf you need SupportedFrameworks files, same as for iOS: https://github.com/mono/bockbuild/blob/master/packages/pcl-reference-assemblies.py#L46
Comment 6 Rolf Bjarne Kvinge [MSFT] 2015-11-03 09:43:21 UTC
@mhutch, thanks!

So from that link it's clear PCL support for WatchOS is already implemented, we just need to ship a new Mono version with this included (which will most likely be Mono 4.4).