Doesn't build in VS 2012

[agross]

1>------ Build started: Project: SeeGitApp, Configuration: Debug Any CPU ------
1>  All packages listed in packages.config are already installed.
1>C:\Windows\Microsoft.NET\Framework\v4.0.30319\Microsoft.Common.targets(1578,5): warning MSB3245: Could not resolve this reference. Could not locate the assembly "Microsoft.Expression.Interactions". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.
1>C:\Windows\Microsoft.NET\Framework\v4.0.30319\Microsoft.Common.targets(1578,5): warning MSB3245: Could not resolve this reference. Could not locate the assembly "System.Windows.Interactivity". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.
1>D:\somewhere\SeeGit\SeeGitApp\Views\CommitVertexView.xaml(23,10): error MC3074: The tag 'Interaction.Behaviors' does not exist in XML namespace 'http://schemas.microsoft.com/expression/2010/interactivity'. Line 23 Position 10.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

I'm no WPF expert and have no idea how to fix the namespace error.

[joewritescode]

I'm no WPF expert either, but I ran into the same issue when I was trying to compile and fiddle around with SeeGit. I believe you need to download and install the Microsoft Expression Blend SDK for .NET 4 on your development machine. You can find it here: http://www.microsoft.com/en-us/download/details.aspx?id=10801

[agross]

Thanks, @joewritescode! Got it to compile now!