The process cannot access the file Microsoft.SharePoint.ApplicationPages.dll

Question

We are running a SharePoint 2013 publishing website on an Azure VM. After installing CU updates we get the following error message when trying to make changes to the Authentication Providers on Central Administration: The process cannot access the file Microsoft.SharePoint.ApplicationPages.dll. After we see this message the website goes down because the web.config file is reset by SharePoint.

Answer 1

Hello @Siya Khumalo ,

The process cannot access "Microsoft.SharePoint.WorkflowServices.ApplicationPages.dll", because it is being used by another process.

Please following steps:

1.Open Task Manager and close all PowerShell

2.Navigation to "C:\inetpub\wwwroot\wss\VirtualDirectories\yourwebapplication_app_bin" and delete "Microsoft.SharePoint.WorkflowServices.ApplicationPages.dll"

3.Run iisreset as an admin using SharePoint 2013 Management Shell

Thanks,
Echo Du

======================================

If an Answer is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.