Remove ios, windows8, and wp8 from Xamarin Forms PCL - nuget 3.0 opt-into error?

visual-studio-2015 nuget xamarin.forms windows-10-universal
Joe Healy picture Joe Healy · Jan 27, 2016 · Viewed 13.7k times · Source

I'm working on a Xamarin Forms project. I want to target Android and Windows 10 UWP.

When I try to clean up the PCL by removing "Windows 8", "Windows Phone Silverlight 8", "Windows Phone 8.1", "Xamarin.ios", and "Xamarin.ios (classic)" from the PCL targets, I get the following nasty...

I'm really just trying to remove WP8 as I don't care about targeting it.

The project's targets cannot be changed. The selected targets require the project to opt-into NuGet 3.0 support, however, Visual Studio cannot automatically do this for you. Please uninstall all NuGet packages and try again.

How do you get a project to opt-into NuGet 3.0? Something else I should try?

environ: Xamarin Forms, VS2015

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Thanks....

Answer

AKW picture AKW · Jun 9, 2016

The solution that worked for me:

Uninstall Xamarin.Forms:

Right Click Solution -> Manage NuGet Packages -> Uninstall Xamarin.Forms -> Restart VS

Then remove build platforms:

Right Click Solution -> Properties -> Build -> under Targeting select Change -> Remove platform(s) -> Restart VS

Reinstall Xamarin.Forms:

Manage NuGet packages -> Search for Xamarin.Forms -> Install -> Restart VS

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