Error 1001 could not create a persistence object for the specified file.

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VB

In visual studiuo 2010 after creation of installer for project.

Right click (on created) installer-->view-->custom actions-->In that Install folder when i added the Update manifest-->right click on update manifest go to properties in the custom action data field added path for project.

path which i added is
/targetDir="[TARGETDIR]/" /documentName="Lokkonfiguration.xlsx" /assemblyName="Lokkonfiguration.dll"

Next, when am trying to Install an error occurs which is , Error 1001 could not create a persistence object for the specified file.

in update manifest installer.cs code contains

namespace UpdateManifest
{
    [RunInstaller(true)]
    [System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand, Name = "FullTrust")]
    public partial class Installer1 : Installer
    {
        public Installer1()
        {
            InitializeComponent();
        }

        // Override Install to update the customization location
        // in the application manifest.
        public override void Install(System.Collections.IDictionary stateSaver)
        {
            // Call the base implementation.
            
            base.Install(stateSaver);
            UpdateApplicationManifest();
        }

        private void UpdateApplicationManifest()
        {
            // Define the parameters passed to the task.
            string targetDir = this.Context.Parameters["targetDir"];
            string documentName = this.Context.Parameters["documentName"];
            string assemblyName = this.Context.Parameters["assemblyName"];

            if (String.IsNullOrEmpty(targetDir))
                throw new InstallException("Cannot update the application manifest. The specified target directory name is not valid.");
            if (String.IsNullOrEmpty(documentName))
                throw new InstallException("Cannot update the application manifest. The specified document name is not valid.");
            if (String.IsNullOrEmpty(assemblyName))
                throw new InstallException("Cannot update the application manifest. The specified assembly name is not valid.");

            // Get the application manifest from the document.
            string documentPath = Path.Combine(targetDir, documentName);
            ServerDocument serverDocument = new ServerDocument(documentPath, FileAccess.ReadWrite);
            try
            {
                AppManifest appManifest = serverDocument.AppManifest;
                //bool allUsers = String.Equals(documentPath, "1");
                string assemblyPath = Path.Combine(targetDir, assemblyName);
               appManifest.Dependency.AssemblyPath = assemblyPath;
               serverDocument.Save();
            }
            finally
            {
                if (serverDocument != null)
                {
                    serverDocument.Close();
                }
            }
        }
    }
}