Another component has already added an HTTPSessionState to the Context. Please make sure only one session state module should be registered

Problem: After changing web application properties from SharePoint central administration site to support “anonymous access”, sites started giving this error message: Another component has already added an HTTPSessionState to the Context. Please make sure only one session state module should be registered Solution: Open Web.config file of the SharePoint web application, search…

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PowerShell Error: Add-Type: Could not load file or assembly ‘file:///C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\ISAPI\Microsoft.SharePoint.Client.dll’ or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded

Problem:  When trying to write a client-side PowerShell script for SharePoint Online, I got an error: Error: Add-Type : Could not load file or assembly ‘file:///C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\ISAPI\Microsoft.SharePoint.Client.dll’ or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be…

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Open with Explorer: Network Error – Windows cannot access URL@SSLDavWWWRootSiteURL

Problem: Open with Explorer button in SharePoint 2010 site gave this error message on a particular document library. Network Error – Windows cannot access URL@SSL\DavWWWRoot\SiteURL\Library You do not have permission to access \\web-app-url@com@SSL\DavWWWRoot\Library-URL. Contact your network administrator to request access. Observation:  The issue is happening only with a particular library. Explorer view works…

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Access Denied Error After Migrating from SharePoint 2010 to SharePoint 2013

Problem: After migrating from SharePoint 2010 to SharePoint 2013 using the database attach method, all users received an “access denied” error, and they were unable to login. Confirmed both the source and destination SharePoint farms are in the same Active Directory domain. Root cause: This is because, by default SharePoint 2013 web…

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Access Denied Error on Insert Picture/Link/Upload File in SharePoint 2010

Problem: Users getting an “Access Denied” error message while inserting a picture via SharePoint 2010 Rich text editor. Verified that the user has “Full Access” permissions on the specific list, Still gets access denied on accessing layout pages such as: /_layouts/RteUploadDialog.aspx, /_layouts/RteDialog.aspx. Found it happens to other ribbon actions as well: Insert…

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Cannot show the value of the filter. The field may not be filterable, or the number of items returned exceeds the list view threshold enforced by the administrator

Problem: When trying to filter a list with large items, I got this error message: “Cannot show the value of the filter. The field may not be filterable, or the number of items returned exceeds the list view threshold enforced by the administrator.” Root cause: It is identified that the particular list…

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Fix “The site is not valid. The ‘Pages’ document library is missing” Error

Problem:After trying to deactivate and activate the publishing feature in a site, users started receiving this error: “The site is not valid. The ‘Pages’ document library is missing”. It also happened after importing a subsite backup! Additionally, when tried creating a Publishing Pages, they got this error: The site is not valid….

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Fix “The Standard View of your list is being displayed because your browser does not support running ActiveX controls.”

Problem:The datasheet view in SharePoint 2010 did not work with the message “The Standard View of your list is being displayed because your browser does not support running ActiveX controls.” in IE11 browser! Solution: Add SharePoint site to compatibility view settings in your IE-11 browser. Furthermore, check the “Display intranet sites in…

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SharePoint 2013 Design Manager – Cannot Map Network Drive in Windows Server 2008/2012?

Problem:  I was trying to map Master Page Gallery as a network drive from Windows Server 2008 R2 but got this error message: “Network Error: Windows cannot access <URL>. Check the spelling of the name. Otherwise, there might be a problem with your network. To try to identify and resolve network problems,…

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