Combobox error on release build - Mono.Linker.MarkException: Error Processing Method

[Patrick King]

Receive the following error when Building Release.  I'm running version 19.2.0.55 and actually have removed sfcombobox nuget.  Any help resolving this would be appreciated.

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000: Mono.Linker.MarkException: Error processing method: 'System.Void Syncfusion.Android.ComboBox.SfComboBox::UpdateComboBoxProperties(System.String,Syncfusion.XForms.ComboBox.SfComboBox,Syncfusion.XForms.Android.ComboBox.SfComboBoxRenderer)' in assembly: 'Syncfusion.SfComboBox.XForms.Android.dll' ---> Mono.Cecil.ResolutionException: Failed to resolve Syncfusion.XForms.ComboBox.SfComboBox/SuggestionPredicate`1<System.Object> Syncfusion.XForms.ComboBox.SfComboBox::Filter

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at Mono.Linker.Steps.MarkStep.HandleUnresolvedField(FieldReference reference)

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at Mono.Linker.Steps.MarkStep.MarkField(FieldReference reference)

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at Mono.Linker.Steps.MarkStep.MarkInstruction(Instruction instruction)

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at Mono.Linker.Steps.MarkStep.MarkMethodBody(MethodBody body)

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at Mono.Linker.Steps.MarkStep.ProcessMethod(MethodDefinition method)

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at Mono.Linker.Steps.MarkStep.ProcessQueue()

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    --- End of inner exception stack trace ---

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at Mono.Linker.Steps.MarkStep.ProcessQueue()

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at Mono.Linker.Steps.MarkStep.ProcessPrimaryQueue()

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at Mono.Linker.Steps.MarkStep.Process()

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at Mono.Linker.Steps.MarkStep.Process(LinkContext context)

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at MonoDroid.Tuner.MonoDroidMarkStep.Process(LinkContext context)

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at Mono.Linker.Pipeline.ProcessStep(LinkContext context, IStep step)

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at Mono.Linker.Pipeline.Process(LinkContext context)

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at MonoDroid.Tuner.Linker.Process(LinkerOptions options, ILogger logger, LinkContext& context)

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at Xamarin.Android.Tasks.LinkAssemblies.Execute(DirectoryAssemblyResolver res)

2>C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Xamarin\Android\Xamarin.Android.Legacy.targets(649,5): error XALNK7000:    at Xamarin.Android.Tasks.LinkAssemblies.RunTask()

[Jeya Kasipandi]

Hi Patrick,

We have checked the reported issue based on the provided information. But we are not able to reproduce the reported issue at our end. Please find the tested sample from below link

Sample Link: https://www.syncfusion.com/downloads/support/directtrac/general/ze/ComboBoxSample-855270294 

Since we are not aware of your exact application scenario, so can you please check with the above sample and if you are still facing the problem, can you please modify the above sample or provide sample. This will be helpful for us to provide better solution at the earliest.

Regards,

Jeya K