title: "Error applying transforms" when installing multiple instance MSI
body: <p>I'm trying to explore instance transforms with WiX version 3.7.1224.0. I created a test project (source below) and I can install the default ProductCode propertly, but when I try to install the resulting MSI, I get an error:</p>
  
  <pre><code>msiexec /i SetupProject1.msi /l*vx install.log MSINEWINSTANCE=1 TRANSFORMS=":Alpha"
  </code></pre>
  
  <blockquote>
    <p>Error applying transforms. Verify that the specified transform paths are valid</p>
  </blockquote>
  
  <p>The install.log seems to suggest there's a row in the Property table that the "regular transform" is expecting to find and modify, but I'm not sure what property it might be looking for. I've been reading the MSDN documentation on multiple instance transforms as well as the WiX documentation and blog posts describing how <code>&lt;InstanceTransforms&gt;</code> works, but I'm at a loss for what it's looking for.</p>
  
  <h3>Compilation</h3>
  
  <pre><code>"%WIX%\bin\candle.exe" -out obj\Debug\ -arch x86 Product.wxs
  
  "%WIX%\bin\Light.exe" -out SetupProject1.msi -cultures:null obj\Debug\Product.wixobj
  </code></pre>
  
  <h3>Product.wxs</h3>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;Wix xmlns="http://schemas.microsoft.com/wix/2006/wi"&gt;
  
    &lt;Product Id="*" Name="SetupProject1" Language="1033" Version="1.0.0.0"
             Manufacturer="ABC"
             UpgradeCode="ce6fdce7-5c23-4379-af59-f70c520ad1b6"&gt;
      &lt;Package InstallerVersion="500" Compressed="yes" InstallScope="perMachine" /&gt;
  
      &lt;MajorUpgrade DowngradeErrorMessage="A newer version of [ProductName] is already installed." /&gt;
      &lt;MediaTemplate EmbedCab="yes" /&gt;
  
      &lt;Property Id="INSTANCENAME" Secure="yes" /&gt;
  
      &lt;InstanceTransforms Property="INSTANCENAME"&gt;
        &lt;Instance Id="Alpha" ProductCode="{16756BA2-9FAC-4BA4-9FFD-FC2F06B1315E}" ProductName="SetupProject1 Alpha"/&gt;
        &lt;Instance Id="Bravo" ProductCode="{D32D3643-5A46-421E-9216-1B1C9037DC37}" ProductName="SetupProject1 Bravo"/&gt;
        &lt;Instance Id="Charlie" ProductCode="{ED9BC4F0-8CB8-4813-B677-F0E4A52D1890}" ProductName="SetupProject1 Charlie"/&gt;
      &lt;/InstanceTransforms&gt;
  
      &lt;Feature Id="ProductFeature" Title="SetupProject1" Level="1"&gt;
        &lt;ComponentRef Id="FileComponent" /&gt;
      &lt;/Feature&gt;
  
      &lt;Directory Id="TARGETDIR" Name="SourceDir"&gt;
        &lt;Directory Id="ProgramFilesFolder"&gt;
            &lt;Directory Id="INSTALLFOLDER" Name="SetupProject1"&gt;
              &lt;Component Id="FileComponent" Guid="*"&gt;
                &lt;File Source="File1.txt" KeyPath="yes" /&gt;
              &lt;/Component&gt;
            &lt;/Directory&gt;
        &lt;/Directory&gt;
      &lt;/Directory&gt;
  
    &lt;/Product&gt;
  &lt;/Wix&gt;
  </code></pre>
  
  <h3>install.log excerpt</h3>
  
  <pre><code>MSI (c) (E4:8C) [13:49:28:343]: TRANSFORM: Applying regular transform to database.
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2262 2: _Tables 3: -2147287038 
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2262 2: _Columns 3: -2147287038 
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2262 2: _Validation 3: -2147287038 
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2262 2: AdminExecuteSequence 3: -2147287038 
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2262 2: AdminUISequence 3: -2147287038 
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2262 2: AdvtExecuteSequence 3: -2147287038 
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2262 2: Component 3: -2147287038 
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2262 2: Directory 3: -2147287038 
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2262 2: Feature 3: -2147287038 
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2262 2: FeatureComponents 3: -2147287038 
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2262 2: File 3: -2147287038 
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2262 2: InstallExecuteSequence 3: -2147287038 
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2262 2: InstallUISequence 3: -2147287038 
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2262 2: LaunchCondition 3: -2147287038 
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2262 2: Media 3: -2147287038 
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 2254 2:  3: Property 
  DEBUG: Error 2254:  Database:  Transform: Cannot update row that doesn't exist. Table: Property
  1: 2254 2:  3: Property 
  Error applying transforms. Verify that the specified transform paths are valid.
  Alpha
  MSI (c) (E4:8C) [13:49:28:343]: Note: 1: 1708 
  MSI (c) (E4:8C) [13:49:28:344]: Product: SetupProject1 Alpha -- Installation failed.
  
  MSI (c) (E4:8C) [13:49:28:344]: Windows Installer installed the product. Product Name: SetupProject1 Alpha. Product Version: 1.0.0.0. Product Language: 1033. Manufacturer: ABC. Installation success or error status: 1624.
  </code></pre>