I want to install add-ons add-ons (which was developed by Visual Studio 2008), but I have the following error.
Name: From: file: /// D: /Project/.Net Training / OutlookAddIn 3 / OutlookAddIn3 / bin / Debug / app.publish / OutlookAddIn3.vsto
Read exception rate from file: /// D: /Project/.Net%20Learning/OutlookAddIn3/OutlookAddIn3/bin/Debug/app.publish/OutlookAddIn3.vsto: the manifest may not be valid or the file cannot be opened.
************** Exceptional text *************** System.Deployment.Application.InvalidDeploymentException: manifest to read exceptions from file: /// D: / Project / .Net% 20Learning / OutlookAddIn3 / OutlookAddIn3 / bin / Debug / app.publish / OutlookAddIn3.vsto: the manifest may be invalid or the file cannot be opened. ---> System.Deployment.Application.InvalidDeploymentException: the deployment manifest is not semantically valid. ---> System.Deployment.Application.InvalidDeploymentException: the deployment manifest requires a publisher and a product. in System.Deployment.Application.Manifest.AssemblyManifest.ValidateSemanticsForDeploymentRole () --- The end of the internal check for the exception stack --- in System.Deployment.Application.Manifest.AssemblyManifest.ValidateSemanticsForDeploymentRole () in System.Depmentment.AssemblyManifest.ValidateSemantics (ManifestType manifestType) in System.Deployment.Application.ManifestReader.FromDocument (String localPath, ManifestType manifestType, Uri sourceUri) --- End of internal check for exception stack --- in Microsoft.VisualStudio.Tools.Applementmentmentlementment .GetManifests (TimeSpan timeout) in Microsoft.VisualStudio.Tools.Applications.Deployment.ClickOnceAddInDeploymentManager.InstallAddIn ()Deployment.ClickOnceAddInDeploymentManager.InstallAddIn ()Deployment.ClickOnceAddInDeploymentManager.InstallAddIn ()