Yeah okay, #h5is I broke the build 🤦‍♂️ - fixed here for this PR, will also fix in the contrib branch

Author: nul800sebastiaan

src/Umbraco.Web.UI/Umbraco.Web.UI.csproj

@@ -319,6 +319,7 @@
     <VSToolsPath Condition="exists('$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v12.0\WebApplications\Microsoft.WebApplication.targets')">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v12.0</VSToolsPath>
     <VSToolsPath Condition="exists('$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v14.0\WebApplications\Microsoft.WebApplication.targets')">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v14.0</VSToolsPath>
     <VSToolsPath Condition="exists('$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v15.0\WebApplications\Microsoft.WebApplication.targets')">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v15.0</VSToolsPath>
+    <VSToolsPath Condition="exists('$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v16.0\WebApplications\Microsoft.WebApplication.targets')">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v16.0</VSToolsPath>
     <VSToolsPath Condition="exists('$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v17.0\WebApplications\Microsoft.WebApplication.targets')">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v17.0</VSToolsPath>
   </PropertyGroup>
   <!-- determine WebPublishingTasks -->