Bug 13528 - Cannot build PCL on Mac OS because references cannot be added
Summary: Cannot build PCL on Mac OS because references cannot be added
Alias: None
Product: Class Libraries
Classification: Mono
Component: mscorlib ()
Version: unspecified
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2013-07-26 15:37 UTC by René Ruppert
Modified: 2014-03-06 17:04 UTC (History)
4 users (show)

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

Screenshot of the project (94.46 KB, image/png)
2013-07-26 15:37 UTC, René Ruppert

Notice (2018-05-24): bugzilla.xamarin.com is now in read-only mode.

Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues. Bugzilla will remain available for reference in read-only mode. We will continue to work on open Bugzilla bugs, copy them to the new locations as needed for follow-up, and add the new items under Related Links.

Our sincere thanks to everyone who has contributed on this bug tracker over the years. Thanks also for your understanding as we make these adjustments and improvements for the future.

Please create a new report on GitHub or Developer Community with your current version information, steps to reproduce, and relevant error messages or log files if you are hitting an issue that looks similar to this resolved bug and you do not yet see a matching new report.

Related Links:

Description René Ruppert 2013-07-26 15:37:37 UTC
Created attachment 4458 [details]
Screenshot of the project

Just wanted to dive into async/await and thought it would be a good thing to combine the exercise with PCLs, but...I cannot add any references. See my screenshot. All the default references are already red and missing.

using System;
using System.Threading.Tasks;

namespace KSAsyncLib
	public class AsyncWorkers
		public AsyncWorkers ()

		public async Task<string> WorkOn(string workload, TimeSpan timeSpan)

=== Xamarin Studio ===

Version 4.0.10 (build 7)
Installation UUID: b8bdc5a1-348b-4fad-8e4f-4632ee990c59
	Mono 3.2.0 ((no/7c7fcc7)
	GTK 2.24.20
	GTK# (
	Package version: 302000000

=== Xamarin.Android ===

Not Installed

=== Apple Developer Tools ===

Xcode 4.6.3 (2068)
Build 4H1503

=== Xamarin.Mac ===

Xamarin.Mac: Not Installed

=== Xamarin.iOS ===

Version: (Starter Edition)
Hash: c9f7659
Build date: 2013-18-07 21:36:03-0400

=== Build Information ===

Release ID: 400100007
Git revision: f324e2154ee86ae1b6b8483392eddbf418e6381b
Build date: 2013-07-20 06:23:58+0000
Xamarin addins: fe4f180e2386eafc00087ef68c3a580cff4a2592

=== Operating System ===

Mac OS X 10.8.4
Darwin Renes-iMac.local 12.4.0 Darwin Kernel Version 12.4.0
    Wed May  1 17:57:12 PDT 2013
    root:xnu-2050.24.15~1/RELEASE_X86_64 x86_64
Comment 1 Mikayla Hutchinson [MSFT] 2013-07-26 17:28:35 UTC
The PCL libraries do not exist on MacOS yet.
Comment 2 Marek Safar 2014-03-06 17:04:39 UTC
I believe this issue has been resolve in recent mono release. Please reopen the issue if you can still reproduce it with mono 3.2.8 or newer