Question

I am getting this error message when I compile my .NET 4.0 app.:

The type ‘System.Collections.Specialized.INotifyCollectionChanged’ is defined in an assembly that is not referenced. You must add a reference to assembly ‘WindowsBase, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35’.

The class it says it needs is defined when you add System to the project references.

It seems to be saying that it needs a version 3 reference. I am not sure what to do.

If anyone has an idea I would love to hear it.

As a side note, I am using the TFS API and this code:

// Get the id of the work item that we got from the server (or the work item associated with it)
int workItemId;

// If this is a test run then we need to look up the work item it is running off of
if (notificationEventArgs is TestCaseResultChangedNotification)
{
    TestCaseResultChangedNotification testCaseResultChangedNotification = (notificationEventArgs as TestCaseResultChangedNotification);
    ITestManagementTeamProject testManagementTeamProject = TFSAccess.Instance.TestManagement.GetTeamProject(testCaseResultChangedNotification.ProjectName);
    ITestCaseResult testCaseResult = testManagementTeamProject.TestResults.Find(testCaseResultChangedNotification.TestCaseResultIdentifier.TestRunId, testCaseResultChangedNotification.TestCaseResultIdentifier.TestResultId);
    workItemId = testCaseResult.TestCaseId;

    foreach (ITestIterationResult testIterationResult in testCaseResult.Iterations)
    {

    }
}

It is the Iterations collection that is causing the issues.

Answer 1

So did you try to add a reference to WindowsBase version 4? It contains a [TypeForwardedTo] attribute to redirect the INotifyCollectionchanged type to System.dll. That should take care of it.