2 files changed, 8 insertions, 9 deletions

diff --git a/src/WixToolset.Mba.Host/WixToolset.Mba.Host.nuspec b/src/WixToolset.Mba.Host/WixToolset.Mba.Host.nuspec
index 101a6671..d1633cb0 100644
--- a/src/WixToolset.Mba.Host/WixToolset.Mba.Host.nuspec
+++ b/src/WixToolset.Mba.Host/WixToolset.Mba.Host.nuspec
@@ -5,8 +5,7 @@
     <version>$version$</version>
     <authors>WiX Toolset Team</authors>
     <owners>WiX Toolset Team</owners>
-    <!-- <license type="expression">MS-RL</license> -->
-    <licenseUrl>https://licenses.nuget.org/MS-RL</licenseUrl>
+    <license type="expression">MS-RL</license>
     <projectUrl>https://github.com/wixtoolset/Bal.wixext</projectUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <description>$description$</description>
diff --git a/src/wixlib/bal.wixproj b/src/wixlib/bal.wixproj
index c7c9a5c3..45ca7f88 100644
--- a/src/wixlib/bal.wixproj
+++ b/src/wixlib/bal.wixproj
@@ -1,9 +1,8 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
-<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="15.0">
-  <Import Project="..\..\packages\WixToolset.MSBuild.4.0.0-build-0126\build\WixToolset.MSBuild.props" />
+<Project DefaultTargets="Build" InitialTargets="EnsureWixToolsetInstalled" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="15.0">
+  <Import Project="..\..\packages\WixToolset.MSBuild.4.0.0-build-0126\build\WixToolset.MSBuild.props" Condition="Exists('..\..\packages\WixToolset.MSBuild.4.0.0-build-0126\build\WixToolset.MSBuild.props')" />
   <Import Project="..\FindLocalWix.props" />
-
   <PropertyGroup>
     <ProjectGuid>{3444D952-F21C-496F-AB6B-56435BFD0787}</ProjectGuid>
     <OutputName>bal</OutputName>
@@ -48,16 +47,17 @@
       <Project>{41085A22-E6AA-4E8B-AB1B-DDEE0DC89DFA}</Project>
     </ProjectReference>
   </ItemGroup>
-
   <Import Project="$(WixTargetsPath)" Condition=" '$(WixTargetsPath)' != '' AND Exists('$(WixTargetsPath)') " />
-
+  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\WiX\v3.x\wix.targets" Condition=" '$(WixTargetsPath)' == '' AND Exists('$(MSBuildExtensionsPath32)\Microsoft\WiX\v3.x\wix.targets') " />
+  <Target Name="EnsureWixToolsetInstalled" Condition=" '$(WixTargetsImported)' != 'true' ">
+    <Error Text="WiX Toolset build tools (v4.0 or later) must be installed to build this project. To download the WiX Toolset, go to http://wixtoolset.org/releases/." />
+  </Target>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
     <Error Condition="!Exists('..\..\packages\Nerdbank.GitVersioning.2.1.65\build\Nerdbank.GitVersioning.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\Nerdbank.GitVersioning.2.1.65\build\Nerdbank.GitVersioning.targets'))" />
-    <Error Condition="!Exists('..\..\packages\WixToolset.MSBuild.4.0.0-build-0126\build\WixToolset.MSBuild.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\WixToolset.MSBuild.4.0.0-build-0101\build\WixToolset.MSBuild.props'))" />
+    <Error Condition="!Exists('..\..\packages\WixToolset.MSBuild.4.0.0-build-0126\build\WixToolset.MSBuild.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\WixToolset.MSBuild.4.0.0-build-0126\build\WixToolset.MSBuild.props'))" />
   </Target>
-
   <Import Project="..\..\packages\Nerdbank.GitVersioning.2.1.65\build\Nerdbank.GitVersioning.targets" Condition="Exists('..\..\packages\Nerdbank.GitVersioning.2.1.65\build\Nerdbank.GitVersioning.targets')" />
 </Project>