# Steps to reproduce
I just updated the xamarin.Forms library to 2.4.280 and I was unable to build my project.
I´m using Visual Studio for Mac 7.1.5 (build 2)
# Expected behavior
The project should build normally
# Actual behavior
I get an error in the error list and I´m unable to compile
# Supplemental info (logs, images, videos)
Error: /Users/n.haslberger/Documents/Projects/Immotech OG/Immotech iOS App/CommonBase/CommonBase.csproj: ../packages/Xamarin.Forms.220.127.116.110/build/netstandard1.0/Xamarin.Forms.props: Project file could not be imported, it was being imported by /Users/n.haslberger/Documents/Projects/Immotech OG/Immotech iOS App/CommonBase/CommonBase.csproj: /Users/n.haslberger/Documents/Projects/Immotech OG/Immotech iOS App/packages/Xamarin.Forms.18.104.22.1680/build/netstandard1.0/Xamarin.Forms.DefaultItems.props: Project file could not be imported, it was being imported by /Users/n.haslberger/Documents/Projects/Immotech OG/Immotech iOS App/packages/Xamarin.Forms.22.214.171.1240/build/netstandard1.0/Xamarin.Forms.props: The attribute "Generator" in element <EmbeddedResource> is unrecognized. (CommonBase)
The content of the Xamarin.Forms.DefaultItems.props file:
<ItemGroup Condition="'$(EnableDefaultItems)'=='True' And '$(EnableDefaultXamlItems)'=='True' And '$(EnableDefaultEmbeddedResourceItems)'=='True'">
<EmbeddedResource Include="**\*.xaml" Exclude="$(DefaultItemExcludes);$(DefaultExcludesInProjectFolder)" SubType="Designer" Generator="MSBuild:UpdateDesignTimeXaml" />
Well it seems that the attributes SubType and Generator are not supported by VS or something like that.
With a fresh project using 126.96.36.1990, I can get it to build on VSMac. Are all the package versions aligned, and did a complete clean/rebuild and deletion of the bin/obj folders help? Adding in a NETStandard 1.4 project with the Forms package lets it compile as well. I think we had some issues with building that could have possibly been resolved, but I want to double check your situation.
I see the similar issue , Started with a brand new forms based app and when trying to compile it is giving this error
"Error: /iOS/TestFormsApp.iOS.csproj: ../packages/Xamarin.Forms.188.8.131.520/build/netstandard1.0/Xamarin.Forms.props: Project file could not be imported, it was being imported by /iOS/TestFormsApp.iOS.csproj: /packages/Xamarin.Forms.184.108.40.2060/build/netstandard1.0/Xamarin.Forms.DefaultItems.props: Project file could not be imported, it was being imported by /packages/Xamarin.Forms.220.127.116.110/build/netstandard1.0/Xamarin.Forms.props: The attribute "SubType" in element <EmbeddedResource> is unrecognized. (TestFormsApp.iOS)"
This is my VS details.
=== Visual Studio Community 2017 for Mac ===
Version 7.2 (build 636)
Installation UUID: 72dc2447-141e-460b-b411-b501a7f1d10a
Mono 18.104.22.168 (2017-06/71277e78f6e) (64-bit)
GTK+ 2.24.23 (Raleigh theme)
Package version: 504000201
=== NuGet ===
=== .NET Core ===
SDK Version: 1.0.3
MSBuild SDKs: /Library/Frameworks/Mono.framework/Versions/5.4.0/lib/mono/msbuild/15.0/bin/Sdks
=== Xamarin.Profiler ===
Location: /Applications/Xamarin Profiler.app/Contents/MacOS/Xamarin Profiler
=== Apple Developer Tools ===
Xcode 9.0 (13247)
=== Xamarin.Mac ===
Version: 22.214.171.124 (Visual Studio Community)
=== Xamarin.iOS ===
Version: 126.96.36.199 (Visual Studio Community)
Build date: 2017-10-05 20:56:05-0400
=== Xamarin.Android ===
Version: 188.8.131.52 (Visual Studio Community)
Android SDK: /Users/smuthin3/Library/Developer/Xamarin/android-sdk-macosx
Supported Android versions:
4.0.3 (API level 15)
4.4 (API level 19)
6.0 (API level 23)
7.1 (API level 25)
SDK Tools Version: 25.2.5
SDK Platform Tools Version: 26.0.0
SDK Build Tools Version: 25.0.3
Java SDK: /usr
java version "1.8.0_91"
Java(TM) SE Runtime Environment (build 1.8.0_91-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.91-b14, mixed mode)
Android Designer EPL code available here:
=== Xamarin Inspector ===
Build date: Tue, 03 Oct 2017 18:26:57 GMT
Client compatibility: 1
=== Build Information ===
Release ID: 702000636
Git revision: b349c8fc0c2e1aab0179917d56eed75eb3a03337
Build date: 2017-10-06 15:20:04-04
Xamarin addins: a8da992c78f7eb65b3cdb3f951c34a30337cab35
Build lane: monodevelop-lion-d15-4
=== Operating System ===
Mac OS X 10.12.6
Darwin 16.7.0 Darwin Kernel Version 16.7.0
Thu Jun 15 17:36:27 PDT 2017
Is there a fix for this? I'm seeing the same error as Comment #2.
I've tried cleaning the project, deleting the bin folders, removing and re-adding the Xamarin.Forms package.
I don't see any <SubType> in the .csproj file.
Using VSMac and Xamarin.Forms Version 184.108.40.206779
any ideas on how I can get past this?
As there have been no further reports, we do not believe this is an issue as of the latest 2.5.0 stable version of Forms. Please reopen with a reproduction project if the issue is still being experienced on new projects while also running the latest VS.
Guidelines for creating reproductions are available at:
Nope, sorry, for the newest 2.5 packages the issue still exists.
VS 2017 for mac is up to date from the stable branch.
Please upload a reproduction per requested when able. Thanks.
I'm getting this error as well. I'm using visual studio for mac enterprise(version 7.3 build 797). using xamarin.forms version 220.127.116.11934.
../packages/Xamarin.Forms.18.104.22.168934/build/netstandard1.0/Xamarin.Forms.DefaultItems.props: Project file could not be imported, it was being imported by /packages/Xamarin.Forms.22.214.171.124934/build/netstandard1.0/Xamarin.Forms.props