问引用的DLL未声明？

EN

Imports FogBugz

Namespace My

' The following events are available for MyApplication:
' 
' Startup: Raised when the application starts, before the startup form is created.
' Shutdown: Raised after all application forms are closed.  This event is not raised if the application terminates abnormally.
' UnhandledException: Raised if the application encounters an unhandled exception.
' StartupNextInstance: Raised when launching a single-instance application and the application is already active. 
' NetworkAvailabilityChanged: Raised when the network connection is connected or disconnected.
Partial Friend Class MyApplication

    Private Sub MyApplication_UnhandledException(ByVal _
    sender As Object, ByVal e As  _
    Microsoft.VisualBasic.ApplicationServices.UnhandledExceptionEventArgs) _
    Handles Me.UnhandledException

        'TO DO: SET THESE VALUES BEFORE CALLING THIS METHOD! 
        Dim url As String = "StackOverFlowDemoString"
        'example: http://localhost/fogbugz/scoutSubmit.asp
        Dim user As String = "StackOverFlowDemoString"
        'existing FogBugz User
        Dim project As String = "StackOverFlowDemoString"
        'existing FogBugz project 
        Dim area As String = "StackOverFlowDemoString"
        'existing FogBugz area
        Dim email As String = "StackOverFlowDemoString"
        'email address of the customer who reports the bug
        Dim defaultMessage As String = "Bug has been submitted. Every bug submitted helps us make this software that much better. We really do appreciate it."
        'the message to return to the user if no Scout Message is found for an existing duplicate bug
        Dim forceNewBug As Boolean = False
        'If set to true, this forces FogBugz to create a new case for this bug, even if a bug with the same description already exists.
        '************************************************************************************
        'send the bug we created:
        BugReport.Submit(url, user, project, area, email, forceNewBug, _
        defaultMessage, e.Exception, True, "{0}.{1}.{2}.{3}", True)


        ' If the user clicks No, then exit.
        e.ExitApplication = _
            MessageBox.Show(e.Exception.Message & _
                    vbCrLf & "Oops! It looks like we have encountered a bug. A bug report has been sent to the developers, so they can have it fixed in a jiffy. Continue?", "An Error has occured.", _
                    MessageBoxButtons.YesNo, _
                    MessageBoxIcon.Question) _
                    = DialogResult.No
    End Sub
End Class


End Namespace