diff --git a/src/Resizetizer/src/GeneratePackageAppxManifest.cs b/src/Resizetizer/src/GeneratePackageAppxManifest.cs
index d0a44571..7437eeec 100644
--- a/src/Resizetizer/src/GeneratePackageAppxManifest.cs
+++ b/src/Resizetizer/src/GeneratePackageAppxManifest.cs
@@ -24,7 +24,7 @@ public class GeneratePackageAppxManifest_v0 : Task
 		public string IntermediateOutputPath { get; set; } = null!;
 
 		[Required]
-		public ITaskItem AppxManifest { get; set; } = null!;
+		public ITaskItem[] AppxManifest { get; set; } = Array.Empty<ITaskItem>();
 
 		public string? TargetFramework { get; set; }
 
@@ -60,7 +60,12 @@ public override bool Execute()
 
 				var filename = Path.Combine(IntermediateOutputPath, GeneratedFilename ?? "Package.appxmanifest");
 
-				var appx = XDocument.Load(AppxManifest.ItemSpec);
+				if (AppxManifest.Length > 1)
+				{
+					Log.LogWarning("Multiple AppxManifest files were provided. Only the first one will be used.");
+				}
+
+				var appx = XDocument.Load(AppxManifest[0].ItemSpec);
 
 				UpdateManifest(appx);
 
diff --git a/src/Resizetizer/test/UnitTests/GeneratePackageAppxManifestTests.cs b/src/Resizetizer/test/UnitTests/GeneratePackageAppxManifestTests.cs
index 58966c12..83b74a2e 100644
--- a/src/Resizetizer/test/UnitTests/GeneratePackageAppxManifestTests.cs
+++ b/src/Resizetizer/test/UnitTests/GeneratePackageAppxManifestTests.cs
@@ -1,7 +1,8 @@
 #nullable enable
 using Microsoft.Build.Framework;
 using Microsoft.Build.Utilities;
-using System.Collections.Generic;
+using System;
+using System.Collections;
 using System.IO;
 using System.Linq;
 using System.Xml.Linq;
@@ -26,12 +27,36 @@ protected GeneratePackageAppxManifest_v0 GetNewTask(
 				IntermediateOutputPath = DestinationDirectory,
 				BuildEngine = this,
 				GeneratedFilename = generatedFilename,
-				AppxManifest = new TaskItem(manifest),
+				AppxManifest = new []{new TaskItem(manifest)},
 				ApplicationId = guid,
 				ApplicationDisplayVersion = displayVersion,
 				ApplicationVersion = version,
-				ApplicationTitle = displayName,
-				AppIcon = appIcon == null ? null : new[] { appIcon },
+				ApplicationTitle = displayName,AppIcon = appIcon == null ? null : new[] { appIcon },
+				SplashScreen = splashScreen == null ? null : new[] { splashScreen },
+				TargetFramework = "windows"
+			};
+		}
+
+		protected GeneratePackageAppxManifest_v0 GetNewTask(
+		ITaskItem[] appxManifests,
+		string? generatedFilename = null,
+		string? guid = null,
+		string? displayVersion = null,
+		string? version = null,
+		string? displayName = null,
+		ITaskItem? appIcon = null,
+		ITaskItem? splashScreen = null)
+		{
+			return new()
+			{
+				IntermediateOutputPath = DestinationDirectory,
+				BuildEngine = this,
+				GeneratedFilename = generatedFilename,
+				AppxManifest = appxManifests,
+				ApplicationId = guid,
+				ApplicationDisplayVersion = displayVersion,
+				ApplicationVersion = version,
+				ApplicationTitle = displayName,AppIcon = appIcon == null ? null : new[] { appIcon },
 				SplashScreen = splashScreen == null ? null : new[] { splashScreen },
 				TargetFramework = "windows"
 			};
@@ -45,6 +70,7 @@ public void FileIsGenerated(string? specificFn, string outputFn)
 			var task = GetNewTask($"testdata/appxmanifest/typical.appxmanifest", generatedFilename: specificFn);
 
 			var success = task.Execute();
+
 			Assert.True(success, $"{task.GetType()}.Execute() failed: " + LogErrorEvents.FirstOrDefault()?.Message);
 
 			Assert.True(File.Exists(Path.Combine(DestinationDirectory, outputFn)), "Package.appxmanifest file was not generated.");
@@ -183,5 +209,19 @@ public void InvalidMergeVersionNumbers(string displayVersion, string appVersion)
 			var result = GeneratePackageAppxManifest_v0.TryMergeVersionNumbers(displayVersion, appVersion, out var merged);
 			Assert.False(result);
 		}
+
+		[Fact]
+		public void TaskShouldFileAWarningIfMoreThanOneManifestIsProvided()
+		{
+			// Arrange
+			var taskItem = new TaskItem("testdata/appxmanifest/typical.appxmanifest");
+			var task = GetNewTask(appxManifests: new [] {taskItem, taskItem});
+
+			// Act
+			task.Execute();
+
+			// Assert
+			Assert.True(LogWarningEvents.Count > 0, "Warnings should be greater than zero");
+		}
 	}
 }
diff --git a/src/Resizetizer/test/UnitTests/Resizetizer.UnitTests.csproj b/src/Resizetizer/test/UnitTests/Resizetizer.UnitTests.csproj
index 44545ef8..17fee812 100644
--- a/src/Resizetizer/test/UnitTests/Resizetizer.UnitTests.csproj
+++ b/src/Resizetizer/test/UnitTests/Resizetizer.UnitTests.csproj
@@ -1,36 +1,37 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
-  <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
-    <AssemblyName>Uno.Resizetizer.UnitTests</AssemblyName>
-    <IsPackable>false</IsPackable>
-    <DefineConstants Condition="'$(OS)' == 'Windows_NT'">$(DefineConstants);WINDOWS</DefineConstants>
-    <Configurations>Debug;Release;DEBUG_RESIZETIZER</Configurations>
-  </PropertyGroup>
+	<PropertyGroup>
+		<TargetFramework>net7.0</TargetFramework>
+		<AssemblyName>Uno.Resizetizer.UnitTests</AssemblyName>
+		<IsPackable>false</IsPackable>
+		<DefineConstants Condition="'$(OS)' == 'Windows_NT'">$(DefineConstants);WINDOWS</DefineConstants>
+		<Configurations>Debug;Release;DEBUG_RESIZETIZER</Configurations>
+		<LangVersion>latest</LangVersion>
+	</PropertyGroup>
 
-  <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.3" />
-    <PackageReference Include="Microsoft.Build.Framework" Version="17.6.3" PrivateAssets="all" />
-    <PackageReference Include="Microsoft.Build.Utilities.Core" Version="17.6.3" PrivateAssets="all" />
-    <PackageReference Include="SkiaSharp" Version="2.88.3" />
-    <PackageReference Include="SkiaSharp.Extended" Version="2.0.0-preview.61" />
-    <PackageReference Include="xunit" Version="2.4.2" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5" />
-    <PackageReference Include="coverlet.collector" Version="6.0.0">
-      <PrivateAssets>all</PrivateAssets>
-      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
-    </PackageReference>
-    <PackageReference Include="Svg.Skia" Version="0.5.18" />
-  </ItemGroup>
+	<ItemGroup>
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.3" />
+		<PackageReference Include="Microsoft.Build.Framework" Version="17.6.3" PrivateAssets="all" />
+		<PackageReference Include="Microsoft.Build.Utilities.Core" Version="17.6.3" PrivateAssets="all" />
+		<PackageReference Include="SkiaSharp" Version="2.88.3" />
+		<PackageReference Include="SkiaSharp.Extended" Version="2.0.0-preview.61" />
+		<PackageReference Include="xunit" Version="2.4.2" />
+		<PackageReference Include="xunit.runner.visualstudio" Version="2.4.5" />
+		<PackageReference Include="coverlet.collector" Version="6.0.0">
+			<PrivateAssets>all</PrivateAssets>
+			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+		</PackageReference>
+		<PackageReference Include="Svg.Skia" Version="0.5.18" />
+	</ItemGroup>
 
-  <ItemGroup>
-    <ProjectReference Include="..\..\src\Resizetizer.csproj" />
-  </ItemGroup>
+	<ItemGroup>
+		<ProjectReference Include="..\..\src\Resizetizer.csproj" />
+	</ItemGroup>
 
-  <ItemGroup>
-    <None Include="images\**" CopyToOutputDirectory="PreserveNewest" />
-    <None Include="testdata\**" CopyToOutputDirectory="PreserveNewest" />
-    <None Include="imageresults\**" CopyToOutputDirectory="PreserveNewest" />
-  </ItemGroup>
+	<ItemGroup>
+		<None Include="images\**" CopyToOutputDirectory="PreserveNewest" />
+		<None Include="testdata\**" CopyToOutputDirectory="PreserveNewest" />
+		<None Include="imageresults\**" CopyToOutputDirectory="PreserveNewest" />
+	</ItemGroup>
 
 </Project>