6 files changed, 112 insertions, 0 deletions

diff --git a/src/wix/WixToolset.Sdk/tools/wix.targets b/src/wix/WixToolset.Sdk/tools/wix.targets
index 4de5835f..ddc83052 100644
--- a/src/wix/WixToolset.Sdk/tools/wix.targets
+++ b/src/wix/WixToolset.Sdk/tools/wix.targets
@@ -178,6 +178,32 @@
     <BindVariable Include="$(WixVariables)"  Condition=" '$(WixVariables)' != '' " />
   </ItemGroup>
 
+
+  <!--
+    ***********************************************************************************************
+    ***********************************************************************************************
+                                                                Restore Section
+    ***********************************************************************************************
+    ***********************************************************************************************
+    -->
+  <Target
+    Name="WixTargetFrameworkCheck"
+    BeforeTargets="_LoadRestoreGraphEntryPoints;CollectPackageReferences;Restore"
+    Condition=" ('$(TargetFrameworks)' != '' and '$(TargetFrameworks)' != 'native') or '$(TargetFramework)' != 'native' ">
+
+    <Error
+      Text="The TargetFrameworks property is not supported by the WiX Toolset. Remove the TargetFrameworks property from your project and try building again. TargetFrameworks = $(TargetFrameworks)"
+      File="$(MSBuildProjectFullPath)"
+      Code="WIX9001"
+      Condition=" '$(TargetFrameworks)' != '' " />
+
+    <Error
+      Text="The TargetFramework property is not supported by the WiX Toolset. Remove the TargetFramework property from your project and try building again. TargetFramework = $(TargetFramework)"
+      File="$(MSBuildProjectFullPath)"
+      Code="WIX9002"
+      Condition=" '$(TargetFramework)' != 'native' " />
+  </Target>
+
   <!--
     ***********************************************************************************************
     ***********************************************************************************************
diff --git a/src/wix/test/WixToolsetTest.Sdk/MsbuildFixture.cs b/src/wix/test/WixToolsetTest.Sdk/MsbuildFixture.cs
index ba5093ac..22cb0a75 100644
--- a/src/wix/test/WixToolsetTest.Sdk/MsbuildFixture.cs
+++ b/src/wix/test/WixToolsetTest.Sdk/MsbuildFixture.cs
@@ -850,6 +850,64 @@ namespace WixToolsetTest.Sdk
         [DataRow(BuildSystem.DotNetCoreSdk)]
         [DataRow(BuildSystem.MSBuild)]
         [DataRow(BuildSystem.MSBuild64)]
+        public void CannotBuildWithTargetFrameworks(BuildSystem buildSystem)
+        {
+            var sourceFolder = TestData.Get(@"TestData", "WithTargetFrameworkError");
+
+            using (var fs = new TestDataFolderFileSystem())
+            {
+                fs.Initialize(sourceFolder);
+                var baseFolder = Path.Combine(fs.BaseFolder, "TargetFrameworkError");
+                var binFolder = Path.Combine(baseFolder, @"bin\");
+                var filesFolder = Path.Combine(binFolder, "Release", @"PFiles\");
+                var projectPath = Path.Combine(baseFolder, "TargetFrameworkError.wixproj");
+
+                var result = MsbuildUtilities.BuildProject(buildSystem, projectPath, [
+                    "-Restore",
+                    MsbuildUtilities.GetQuotedPropertySwitch(buildSystem, "WixMSBuildProps", MsbuildFixture.WixPropsPath)
+                    ]);
+
+                var errors = GetDistinctErrorMessages(result.Output, baseFolder);
+                WixAssert.CompareLineByLine(new[]
+                {
+                    @"<basefolder>\TargetFrameworkError.wixproj : error WIX9002: The TargetFramework property is not supported by the WiX Toolset. Remove the TargetFramework property from your project and try building again. TargetFramework = net472",
+                }, errors);
+            }
+        }
+
+        [TestMethod]
+        [DataRow(BuildSystem.DotNetCoreSdk)]
+        [DataRow(BuildSystem.MSBuild)]
+        [DataRow(BuildSystem.MSBuild64)]
+        public void CannotBuildWithTargetFramework(BuildSystem buildSystem)
+        {
+            var sourceFolder = TestData.Get(@"TestData", "WithTargetFrameworkError");
+
+            using (var fs = new TestDataFolderFileSystem())
+            {
+                fs.Initialize(sourceFolder);
+                var baseFolder = Path.Combine(fs.BaseFolder, "TargetFrameworksError");
+                var binFolder = Path.Combine(baseFolder, @"bin\");
+                var filesFolder = Path.Combine(binFolder, "Release", @"PFiles\");
+                var projectPath = Path.Combine(baseFolder, "TargetFrameworksError.wixproj");
+
+                var result = MsbuildUtilities.BuildProject(buildSystem, projectPath, [
+                    "-Restore",
+                    MsbuildUtilities.GetQuotedPropertySwitch(buildSystem, "WixMSBuildProps", MsbuildFixture.WixPropsPath)
+                    ]);
+
+                var errors = GetDistinctErrorMessages(result.Output, baseFolder);
+                WixAssert.CompareLineByLine(new[]
+                {
+                    @"<basefolder>\TargetFrameworksError.wixproj : error WIX9001: The TargetFrameworks property is not supported by the WiX Toolset. Remove the TargetFrameworks property from your project and try building again. TargetFrameworks = net8.0",
+                }, errors);
+            }
+        }
+
+        [TestMethod]
+        [DataRow(BuildSystem.DotNetCoreSdk)]
+        [DataRow(BuildSystem.MSBuild)]
+        [DataRow(BuildSystem.MSBuild64)]
         public void CanBuildWithWarningWhenExtensionIsMissing(BuildSystem buildSystem)
         {
             var sourceFolder = TestData.Get(@"TestData", "WixlibMissingExtension");
diff --git a/src/wix/test/WixToolsetTest.Sdk/TestData/WithTargetFrameworkError/TargetFrameworkError/Package.wxs b/src/wix/test/WixToolsetTest.Sdk/TestData/WithTargetFrameworkError/TargetFrameworkError/Package.wxs
new file mode 100644
index 00000000..ac49711f
--- /dev/null
+++ b/src/wix/test/WixToolsetTest.Sdk/TestData/WithTargetFrameworkError/TargetFrameworkError/Package.wxs
@@ -0,0 +1,5 @@
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs">
+  <Package Id="WixTest.Package" Name="MsiPackage" Language="1033" Version="1.0.0.0" Manufacturer="Example Corporation">
+      <File Source="doesnotexist.txt" />
+  </Package>
+</Wix>
diff --git a/src/wix/test/WixToolsetTest.Sdk/TestData/WithTargetFrameworkError/TargetFrameworkError/TargetFrameworkError.wixproj b/src/wix/test/WixToolsetTest.Sdk/TestData/WithTargetFrameworkError/TargetFrameworkError/TargetFrameworkError.wixproj
new file mode 100644
index 00000000..3b6e1300
--- /dev/null
+++ b/src/wix/test/WixToolsetTest.Sdk/TestData/WithTargetFrameworkError/TargetFrameworkError/TargetFrameworkError.wixproj
@@ -0,0 +1,9 @@
+<Project>
+  <Import Project="$(WixMSBuildProps)" />
+
+  <PropertyGroup>
+    <TargetFramework>net472</TargetFramework>
+  </PropertyGroup>
+
+  <Import Project="$(WixTargetsPath)" />
+</Project>
diff --git a/src/wix/test/WixToolsetTest.Sdk/TestData/WithTargetFrameworkError/TargetFrameworksError/Package.wxs b/src/wix/test/WixToolsetTest.Sdk/TestData/WithTargetFrameworkError/TargetFrameworksError/Package.wxs
new file mode 100644
index 00000000..ac49711f
--- /dev/null
+++ b/src/wix/test/WixToolsetTest.Sdk/TestData/WithTargetFrameworkError/TargetFrameworksError/Package.wxs
@@ -0,0 +1,5 @@
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs">
+  <Package Id="WixTest.Package" Name="MsiPackage" Language="1033" Version="1.0.0.0" Manufacturer="Example Corporation">
+      <File Source="doesnotexist.txt" />
+  </Package>
+</Wix>
diff --git a/src/wix/test/WixToolsetTest.Sdk/TestData/WithTargetFrameworkError/TargetFrameworksError/TargetFrameworksError.wixproj b/src/wix/test/WixToolsetTest.Sdk/TestData/WithTargetFrameworkError/TargetFrameworksError/TargetFrameworksError.wixproj
new file mode 100644
index 00000000..b3f4777f
--- /dev/null
+++ b/src/wix/test/WixToolsetTest.Sdk/TestData/WithTargetFrameworkError/TargetFrameworksError/TargetFrameworksError.wixproj
@@ -0,0 +1,9 @@
+<Project>
+  <Import Project="$(WixMSBuildProps)" />
+
+  <PropertyGroup>
+    <TargetFrameworks>net8.0</TargetFrameworks>
+  </PropertyGroup>
+
+  <Import Project="$(WixTargetsPath)" />
+</Project>