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Xamarin for Visual Studio Upgrade Issue

Question asked by azatrain on Apr 5, 2017
Latest reply on Apr 11, 2017 by azatrain

I just upgraded Xamarin for Visual Studio to all the latest versions and now my Runtime app fails with the following error.  The part in bold leads me to believe the current version of the Runtime API does not support the latest Xamarin for Visual Studio bits.  Can someone from Esri confirm that and let me know the best way to rollback?  I didn't see anything on your System Requirements page concerning this stuff.  Here's what I have now:

 

Xamarin - 4.3.0.7905

Xamarin.Android - 7.1.0.43

Xamarin iOS - 10.6.0.9

 

Here's what I had prior to the upgrade:

 

Xamarin - 4.1.1.3

Xamarin.Android - 6.1.1.1

Xamarin.iOS - 9.8.1.4

 

 

{System.MissingMethodException: Default constructor not found for type Esri.ArcGISRuntime.Xamarin.Forms.MapView
at System.RuntimeType.CreateInstanceMono (System.Boolean nonPublic) [0x00085] in /Users/builder/data/lanes/4009/3a62f1ea/source/mono/mcs/class/corlib/ReferenceSources/RuntimeType.cs:171
at System.RuntimeType.CreateInstanceSlow (System.Boolean publicOnly, System.Boolean skipCheckThis, System.Boolean fillCache, System.Threading.StackCrawlMark& stackMark) [0x0001a] in /Users/builder/data/lanes/4009/3a62f1ea/source/mono/mcs/class/corlib/ReferenceSources/RuntimeType.cs:153
at System.RuntimeType.CreateInstanceDefaultCtor (System.Boolean publicOnly, System.Boolean skipCheckThis, System.Boolean fillCache, System.Threading.StackCrawlMark& stackMark) [0x0002a] in /Users/builder/data/lanes/4009/3a62f1ea/source/mono/mcs/class/referencesource/mscorlib/system/rttype.cs:5638
at System.Activator.CreateInstance (System.Type type, System.Boolean nonPublic) [0x00040] in /Users/builder/data/lanes/4009/3a62f1ea/source/mono/mcs/class/referencesource/mscorlib/system/activator.cs:201
at System.Activator.CreateInstance (System.Type type) [0x00000] in /Users/builder/data/lanes/4009/3a62f1ea/source/mono/mcs/class/referencesource/mscorlib/system/activator.cs:134
at Xamarin.Forms.Xaml.CreateValuesVisitor.Visit (Xamarin.Forms.Xaml.ElementNode node, Xamarin.Forms.Xaml.INode parentNode) [0x0021f] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Xaml\CreateValuesVisitor.cs:97
at Xamarin.Forms.Xaml.ElementNode.Accept (Xamarin.Forms.Xaml.IXamlNodeVisitor visitor, Xamarin.Forms.Xaml.INode parentNode) [0x000b1] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Xaml\XamlNode.cs:176
at Xamarin.Forms.Xaml.ElementNode.Accept (Xamarin.Forms.Xaml.IXamlNodeVisitor visitor, Xamarin.Forms.Xaml.INode parentNode) [0x00089] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Xaml\XamlNode.cs:173
at Xamarin.Forms.Xaml.RootNode.Accept (Xamarin.Forms.Xaml.IXamlNodeVisitor visitor, Xamarin.Forms.Xaml.INode parentNode) [0x00089] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Xaml\XamlNode.cs:226
at Xamarin.Forms.Xaml.XamlLoader.Visit (Xamarin.Forms.Xaml.RootNode rootnode, Xamarin.Forms.Xaml.HydratationContext visitorContext) [0x00053] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Xaml\XamlLoader.cs:122
at Xamarin.Forms.Xaml.XamlLoader.Load (System.Object view, System.String xaml) [0x00046] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Xaml\XamlLoader.cs:76
at Xamarin.Forms.Xaml.XamlLoader.Load (System.Object view, System.Type callingType) [0x0002f] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Xaml\XamlLoader.cs:56
at Xamarin.Forms.Xaml.Extensions.LoadFromXaml[TXaml] (TXaml view, System.Type callingType) [0x00000] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Xaml\ViewExtensions.cs:36
at EFCloud.MapPage.InitializeComponent () [0x00001] in C:\Epoch\ESG_Products\EpochFieldCloud\EFCloud\EFCloud.Android\obj\Debug\EFCloud.MapPage.xaml.g.cs:45
at EFCloud.MapPage..ctor () [0x0002d] in C:\Epoch\ESG_Products\EpochFieldCloud\EFCloud\EFCloud.Shared\MapPage.xaml.cs:51
at EFCloud.App..ctor () [0x00047] in C:\Epoch\ESG_Products\EpochFieldCloud\EFCloud\EFCloud.Shared\App.xaml.cs:95 }

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