Specflow scenarios throws exception with Visual Studio 2012 - coded-ui-tests

Question

I am trying to do UI automation using specflow/CodedUI/VSTS 2012.
When I try to run the scenario, I am getting the following error:
Could not load file or assembly 'Microsoft.VisualStudio.TestTools.UITest.Playback, Version=11.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.
Can anyone tell me how to resolve this error ?

Answer 1

Finally I found a way to resolve this problem. I do not know why but you have to write your own assembly resolver. I found the solution here:
http://blog.csdn.net/marryshi/article/details/8100194
However, I had to update the registry path for VS2012:
static Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)
{
AssemblyName assemblyName = new AssemblyName(args.Name);
if (assemblyName.Name.StartsWith("Microsoft.VisualStudio.TestTools.UITest", StringComparison.Ordinal))
{
string path = string.Empty;
using (RegistryKey key = Registry.LocalMachine.OpenSubKey(#"Software\Microsoft\VisualStudio\11.0"))
{
if (key != null)
{
path = key.GetValue("InstallDir") as string;
}
}
if (!string.IsNullOrWhiteSpace(path))
{
string assemblyPath = Path.Combine(path, "PublicAssemblies",
string.Format(CultureInfo.InvariantCulture, "{0}.dll", assemblyName.Name));
if (!File.Exists(assemblyPath))
{
assemblyPath = Path.Combine(path, "PrivateAssemblies",
string.Format(CultureInfo.InvariantCulture, "{0}.dll", assemblyName.Name));
if (!File.Exists(assemblyPath))
{
string commonFiles = Environment.GetFolderPath(Environment.SpecialFolder.CommonProgramFilesX86);
if (string.IsNullOrWhiteSpace(commonFiles))
{
commonFiles = Environment.GetFolderPath(Environment.SpecialFolder.CommonProgramFiles);
}
assemblyPath = Path.Combine(commonFiles, "Microsoft Shared", "VSTT", "10.0",
string.Format(CultureInfo.InvariantCulture, "{0}.dll", assemblyName.Name));
}
}
if (File.Exists(assemblyPath))
{
return Assembly.LoadFrom(assemblyPath);
}
}
}
return null;
}
And I registry resolver before running the feature:
[BeforeFeature]
public static void Initialize()
{
AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(CurrentDomain_AssemblyResolve);
}