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Published web app causes error when creating a directory

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Last Modified: 2013-12-09
Hi,

I have the code below which copies a directory structure and works just fine in a development environment. But when I publish the web app and access it and run the page which executes the code then I get an internal server error! I have spent 2 days on this and would be grateful for any advice, I am thinking it must be a permission issue.

Thanks

    Public Function CopyMediaDirectory(ByVal directorySource As String, ByVal directoryDestination As String) As String Implements IM05_PublishedOnlineCourseManager.CopyMediaDirectory

        Dim source As New DirectoryInfo(Server.MapPath("../" & directorySource))
        Dim destination As New DirectoryInfo(Server.MapPath("../" & directoryDestination))


        If Not destination.Exists Then
            destination.Create()
        End If

        ' Copy all files.
        Dim files As FileInfo() = source.GetFiles()
        For Each file As FileInfo In files
            file.CopyTo(Path.Combine(destination.FullName, file.Name))
        Next

        ' Process subdirectories.
        Dim dirs As DirectoryInfo() = source.GetDirectories()
        For Each dir As DirectoryInfo In dirs
            ' Get destination directory.
            Dim destinationDir As String = Path.Combine(destination.FullName, dir.Name)

            ' Call CopyDirectory() recursively.
            CopyMediaDirectory(directorySource & "/" & dir.ToString(), destinationDir)
        Next

        Return "foldersComplete"

    End Function

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