Could not generate Release build

Hi,

I could not generate release build for my xamarin.forms android app.
I am getting following error, can some one help me out with this ?

C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(5,5): Error MSB4018: The "LinkAssemblies" task failed unexpectedly.
Xamarin.Android.XamarinAndroidException: error XA2006: Reference to metadata item 'Xamarin.Forms.BindableProperty Xamarin.Forms.BindableProperty:
:Create(System.Linq.Expressions.Expression1<System.Func2<!!0,!!1>>,!!1,Xamarin.Forms.BindingMode,Xamarin.Forms.BindableProperty/ValidateValueDelegate

1<!!1>,
Xamarin.Forms.BindableProperty/BindingPropertyChangedDelegate

1<!!1>,Xamarin.Forms.BindableProperty/BindingPropertyChangingDelegate

1<!!1>,Xamarin.Forms.
BindableProperty/CoerceValueDelegate

1<!!1>)' (defined in 'Xamarin.Forms.Labs, Version=1.0.1.5, Culture=neutral, PublicKeyToken=null') from 'Xamarin.Forms.Labs,
Version=1.0.1.5, Culture=neutral, PublicKeyToken=null' could not be resolved. ---> Mono.Cecil.ResolutionException: Failed to resolve Xamarin.Forms.BindableProperty
Xamarin.Forms.BindableProperty::Create(System.Linq.Expressions.Expression1<System.Func2<!!0,!!1>>,!!1,Xamarin.Forms.BindingMode,Xamarin.Forms.BindableProperty/
ValidateValueDelegate1<!!1>,Xamarin.Forms.BindableProperty/BindingPropertyChangedDelegate1<!!1>,Xamarin.Forms.BindableProperty/BindingPropertyChangingDelegate

1<!!1>
,Xamarin.Forms.BindableProperty/CoerceValueDelegate

1<!!1>)
at Mono.Linker.Steps.MarkStep.MarkMethod(MethodReference reference)
at Mono.Linker.Steps.MarkStep.MarkInstruction(Instruction instruction)
at Mono.Linker.Steps.MarkStep.MarkMethodBody(MethodBody body)
at Mono.Linker.Steps.MarkStep.ProcessMethod(MethodDefinition method)
at Mono.Linker.Steps.MarkStep.ProcessQueue()
at Mono.Linker.Steps.MarkStep.Process()
at Mono.Linker.Steps.MarkStep.Process(LinkContext context)
at Mono.Linker.Pipeline.Process(LinkContext context)
at MonoDroid.Tuner.Linker.Process(LinkerOptions options, LinkContext& context)
at Xamarin.Android.Tasks.LinkAssemblies.Execute()
--- End of inner exception stack trace ---
at Xamarin.Android.Diagnostic.Error(Int32 code, Exception innerException, String message, Object[] args)
at Xamarin.Android.Tasks.LinkAssemblies.Execute()
at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
at Microsoft.Build.BackEnd.TaskBuilder.d__1.MoveNext() (MSB4018) (AlmaraiFormsApp.Droid)