NRE in generator

[jonathanpeppers]

I saw this here: dotnet/android-libraries#247

    BindingsGenerator
        ...
        Warnings
            /Users/runner/work/1/s/source/Metadata.common.xml(2, 6) warning BG8A00: Metadata.xml element '<remove-node path="/api/package/*[contains(@name, 'IcsImpl') or contains(@name, 'JellyBeanImpl') or contains(@name, 'JellyBeanMr2Impl') or contains(@name, 'Api16') or contains(@name, 'Api17') or contains(@name, 'Api18') or contains(@name, 'Api19') or contains(@name, 'Api20') or contains(@name, 'Api21') or contains(@name, 'Api22') or contains(@name, 'Api23') or contains(@name, 'Api24') or contains(@name, 'Api25') or contains(@name, 'Api26') or contains(@name, 'Api27') or contains(@name, 'Api28') or contains(@name, 'Api29') or contains(@name, 'Api30') or contains(@name, 'Honeycomb') or contains(@name, 'IceCreamSandwich') or contains(@name, 'Jellybean') or contains(@name, 'KitKat') or contains(@name, 'Lollipop') or contains(@name, 'Marshmallow') or contains(@name, 'Nougat') or contains(@name, 'Oreo') or contains(@name, 'ImplJB') or contains(@name, 'ImplICS') or contains(@name, 'ImplIcs') or contains(@name, 'ImplHC') or contains(@name, 'HcMr1') or contains(@name, 'HcMr2') or contains(@name, 'HcMr3') or contains(@name, 'JbMr2') or contains(@name, 'JbMr2') or contains(@name, 'JbMr1') or contains(@name, 'ICSMr1') or contains(@name, 'ICSMr2') or contains(@name, 'ImplV11') or contains(@name, 'ImplV21')]" />' matched no nodes. [/Users/runner/work/1/s/generated/androidx.tvprovider.tvprovider/androidx.tvprovider.tvprovider.csproj]
            /Users/runner/work/1/s/source/Metadata.common.xml(2, 6): warning BG8A00: Metadata.xml element '<remove-node path="/api/package/*[contains(@name, 'IcsImpl') or contains(@name, 'JellyBeanImpl') or contains(@name, 'JellyBeanMr2Impl') or contains(@name, 'Api16') or contains(@name, 'Api17') or contains(@name, 'Api18') or contains(@name, 'Api19') or contains(@name, 'Api20') or contains(@name, 'Api21') or contains(@name, 'Api22') or contains(@name, 'Api23') or contains(@name, 'Api24') or contains(@name, 'Api25') or contains(@name, 'Api26') or contains(@name, 'Api27') or contains(@name, 'Api28') or contains(@name, 'Api29') or contains(@name, 'Api30') or contains(@name, 'Honeycomb') or contains(@name, 'IceCreamSandwich') or contains(@name, 'Jellybean') or contains(@name, 'KitKat') or contains(@name, 'Lollipop') or contains(@name, 'Marshmallow') or contains(@name, 'Nougat') or contains(@name, 'Oreo') or contains(@name, 'ImplJB') or contains(@name, 'ImplICS') or contains(@name, 'ImplIcs') or contains(@name, 'ImplHC') or contains(@name, 'HcMr1') or contains(@name, 'HcMr2') or contains(@name, 'HcMr3') or contains(@name, 'JbMr2') or contains(@name, 'JbMr2') or contains(@name, 'JbMr1') or contains(@name, 'ICSMr1') or contains(@name, 'ICSMr2') or contains(@name, 'ImplV11') or contains(@name, 'ImplV21')]" />' matched no nodes.
        Unhandled Exception:
        Unhandled Exception:
        System.NullReferenceException: Object reference not set to an instance of an object
        System.NullReferenceException: Object reference not set to an instance of an object
        at generator.SourceWriters.BoundInterface.AddInheritedInterfaces (MonoDroid.Generation.InterfaceGen iface, MonoDroid.Generation.CodeGenerationOptions opt) [0x00034] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.BoundInterface.AddInheritedInterfaces (MonoDroid.Generation.InterfaceGen iface, MonoDroid.Generation.CodeGenerationOptions opt) [0x00034] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.BoundInterface..ctor (MonoDroid.Generation.InterfaceGen iface, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo genInfo) [0x0019b] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.BoundInterface..ctor (MonoDroid.Generation.InterfaceGen iface, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo genInfo) [0x0019b] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.SourceWriterExtensions.BuildManagedTypeModel (MonoDroid.Generation.GenBase gen, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo genInfo) [0x0001e] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.SourceWriterExtensions.BuildManagedTypeModel (MonoDroid.Generation.GenBase gen, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo genInfo) [0x0001e] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.BoundClass.AddNestedTypes (MonoDroid.Generation.ClassGen klass, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo genInfo) [0x00042] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.BoundClass.AddNestedTypes (MonoDroid.Generation.ClassGen klass, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo genInfo) [0x00042] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.BoundClass..ctor (MonoDroid.Generation.ClassGen klass, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo generationInfo) [0x00338] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.BoundClass..ctor (MonoDroid.Generation.ClassGen klass, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo generationInfo) [0x00338] in <1cf370e892674e6d8b798a230e594994>:0 
        at MonoDroid.Generation.JavaInteropCodeGenerator.WriteType (MonoDroid.Generation.GenBase gen, System.String indent, MonoDroid.Generation.GenerationInfo gen_info) [0x00037] in <1cf370e892674e6d8b798a230e594994>:0 
        at MonoDroid.Generation.JavaInteropCodeGenerator.WriteType (MonoDroid.Generation.GenBase gen, System.String indent, MonoDroid.Generation.GenerationInfo gen_info) [0x00037] in <1cf370e892674e6d8b798a230e594994>:0 
        at MonoDroid.Generation.ClassGen.Generate (MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.GenerationInfo gen_info) [0x0007d] in <1cf370e892674e6d8b798a230e594994>:0 
        at MonoDroid.Generation.ClassGen.Generate (MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.GenerationInfo gen_info) [0x0007d] in <1cf370e892674e6d8b798a230e594994>:0 
        at Xamarin.Android.Binder.CodeGenerator.Run (Xamarin.Android.Binder.CodeGeneratorOptions options, Java.Interop.Tools.Cecil.DirectoryAssemblyResolver resolver) [0x005d1] in <1cf370e892674e6d8b798a230e594994>:0 
        at Xamarin.Android.Binder.CodeGenerator.Run (Xamarin.Android.Binder.CodeGeneratorOptions options, Java.Interop.Tools.Cecil.DirectoryAssemblyResolver resolver) [0x005d1] in <1cf370e892674e6d8b798a230e594994>:0 
        at Xamarin.Android.Binder.CodeGenerator.Run (Xamarin.Android.Binder.CodeGeneratorOptions options) [0x0001b] in <1cf370e892674e6d8b798a230e594994>:0 
        at Xamarin.Android.Binder.CodeGenerator.Run (Xamarin.Android.Binder.CodeGeneratorOptions options) [0x0001b] in <1cf370e892674e6d8b798a230e594994>:0 
        at Xamarin.Android.Binder.CodeGenerator.Main (System.String[] args) [0x0000c] in <1cf370e892674e6d8b798a230e594994>:0 
        at Xamarin.Android.Binder.CodeGenerator.Main (System.String[] args) [0x0000c] in <1cf370e892674e6d8b798a230e594994>:0 
        [ERROR] FATAL UNHANDLED EXCEPTION: System.NullReferenceException: Object reference not set to an instance of an object
        [ERROR] FATAL UNHANDLED EXCEPTION: System.NullReferenceException: Object reference not set to an instance of an object
        at generator.SourceWriters.BoundInterface.AddInheritedInterfaces (MonoDroid.Generation.InterfaceGen iface, MonoDroid.Generation.CodeGenerationOptions opt) [0x00034] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.BoundInterface.AddInheritedInterfaces (MonoDroid.Generation.InterfaceGen iface, MonoDroid.Generation.CodeGenerationOptions opt) [0x00034] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.BoundInterface..ctor (MonoDroid.Generation.InterfaceGen iface, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo genInfo) [0x0019b] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.BoundInterface..ctor (MonoDroid.Generation.InterfaceGen iface, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo genInfo) [0x0019b] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.SourceWriterExtensions.BuildManagedTypeModel (MonoDroid.Generation.GenBase gen, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo genInfo) [0x0001e] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.SourceWriterExtensions.BuildManagedTypeModel (MonoDroid.Generation.GenBase gen, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo genInfo) [0x0001e] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.BoundClass.AddNestedTypes (MonoDroid.Generation.ClassGen klass, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo genInfo) [0x00042] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.BoundClass.AddNestedTypes (MonoDroid.Generation.ClassGen klass, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo genInfo) [0x00042] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.BoundClass..ctor (MonoDroid.Generation.ClassGen klass, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo generationInfo) [0x00338] in <1cf370e892674e6d8b798a230e594994>:0 
        at generator.SourceWriters.BoundClass..ctor (MonoDroid.Generation.ClassGen klass, MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.CodeGeneratorContext context, MonoDroid.Generation.GenerationInfo generationInfo) [0x00338] in <1cf370e892674e6d8b798a230e594994>:0 
        at MonoDroid.Generation.JavaInteropCodeGenerator.WriteType (MonoDroid.Generation.GenBase gen, System.String indent, MonoDroid.Generation.GenerationInfo gen_info) [0x00037] in <1cf370e892674e6d8b798a230e594994>:0 
        at MonoDroid.Generation.JavaInteropCodeGenerator.WriteType (MonoDroid.Generation.GenBase gen, System.String indent, MonoDroid.Generation.GenerationInfo gen_info) [0x00037] in <1cf370e892674e6d8b798a230e594994>:0 
        at MonoDroid.Generation.ClassGen.Generate (MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.GenerationInfo gen_info) [0x0007d] in <1cf370e892674e6d8b798a230e594994>:0 
        at MonoDroid.Generation.ClassGen.Generate (MonoDroid.Generation.CodeGenerationOptions opt, MonoDroid.Generation.GenerationInfo gen_info) [0x0007d] in <1cf370e892674e6d8b798a230e594994>:0 
        at Xamarin.Android.Binder.CodeGenerator.Run (Xamarin.Android.Binder.CodeGeneratorOptions options, Java.Interop.Tools.Cecil.DirectoryAssemblyResolver resolver) [0x005d1] in <1cf370e892674e6d8b798a230e594994>:0 
        at Xamarin.Android.Binder.CodeGenerator.Run (Xamarin.Android.Binder.CodeGeneratorOptions options, Java.Interop.Tools.Cecil.DirectoryAssemblyResolver resolver) [0x005d1] in <1cf370e892674e6d8b798a230e594994>:0 
        at Xamarin.Android.Binder.CodeGenerator.Run (Xamarin.Android.Binder.CodeGeneratorOptions options) [0x0001b] in <1cf370e892674e6d8b798a230e594994>:0 
        at Xamarin.Android.Binder.CodeGenerator.Run (Xamarin.Android.Binder.CodeGeneratorOptions options) [0x0001b] in <1cf370e892674e6d8b798a230e594994>:0 
        at Xamarin.Android.Binder.CodeGenerator.Main (System.String[] args) [0x0000c] in <1cf370e892674e6d8b798a230e594994>:0 
        at Xamarin.Android.Binder.CodeGenerator.Main (System.String[] args) [0x0000c] in <1cf370e892674e6d8b798a230e594994>:0 
        Errors
            /Library/Frameworks/Xamarin.Android.framework/Libraries/xbuild/Xamarin/Android/Xamarin.Android.Bindings.Core.targets(53,5): error MSB6006: "mono" exited with code 1. [/Users/runner/work/1/s/generated/androidx.tvprovider.tvprovider/androidx.tvprovider.tvprovider.csproj]

Using: https://dl.internalx.com/vsts-devdiv/Xamarin.Android/public/4451481/master/05bb8e0eae11ae6a73838b13cf91ee2433169dff/xamarin.android-11.2.99.85.pkg

Logs are probably easiest downloaded from Azure DevOps: https://devdiv.visualstudio.com/DevDiv/_build/results?buildId=4456235&view=artifacts&pathAsName=false&type=publishedArtifacts

They are too big to upload here.