We're running Umbraco 4.5.2 and I'm trying to install Umbraco_Concierge_2.0.1_UPDATE and I get the following error. Also, can anyone explain to me how the dependencies part of Concierge works? That’s the reason we got and we can't figure out how to use it. Thanks!

Could not upload file
System.Exception: Error unpacking extension... ---> System.IO.FileNotFoundException: Could not find file 'C:\inetpub\wwwroot\Umbraco\App_Data\49f100ad-2115-475b-9feb-03adfc090298\package.xml'. File name: 'C:\inetpub\wwwroot\Umbraco\App_Data\49f100ad-2115-475b-9feb-03adfc090298\package.xml' at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy) at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy) at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize) at System.Xml.XmlDownloadManager.GetStream(Uri uri, ICredentials credentials) at System.Xml.XmlUrlResolver.GetEntity(Uri absoluteUri, String role, Type ofObjectToReturn) at System.Xml.XmlTextReaderImpl.OpenUrlDelegate(Object xmlResolver) at System.Threading.CompressedStack.runTryCode(Object userData) at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) at System.Threading.CompressedStack.Run(CompressedStack compressedStack, ContextCallback callback, Object state) at System.Xml.XmlTextReaderImpl.OpenUrl() at System.Xml.XmlTextReaderImpl.Read() at System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace) at System.Xml.XmlDocument.Load(XmlReader reader) at System.Xml.XmlDocument.Load(String filename) at umbraco.cms.businesslogic.packager.Installer.LoadConfig(String tempDir) at umbraco.cms.businesslogic.packager.Installer.Import(String InputFile) --- End of inner exception stack trace --- at umbraco.cms.businesslogic.packager.Installer.Import(String InputFile) at umbraco.presentation.developer.packages.Installer.uploadFile(Object sender, EventArgs e)