The URL or name of this list instance conflicts with a list instance already on the server in visual studio 2010 in SharePoint

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In this post we will discuss how to resolve error The URL or name of this list instance conflicts with a list instance already on the server.

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When I created the List Instance in visual studio 2010. First deployment is successful but when again I deploy that solution I got the error message:

“The URL or name of this list instance conflicts with a list instance already on the server. The list instance on the server will be deleted before deploying the new list instance”.

The URL or name of this list instance conflicts with a list instance already on the server in visual studio 2010 in SharePoint
The URL or name of this list instance conflicts with a list instance already on the server in visual studio 2010 in SharePoint

Resolution:
First we select the list definition name and expand that list and select the List instance and now open properties. In the property we able to See Deployment Conflict Resolution. When you the click that than dropdown list is open and you see there is three options:

1. None : Keep it your existed list with item (If list is not there that list will created).
2. Prompt : Give the error message with Prompt (See in fig 1)
3. Automatic: Automatic deletes the existing list.

By default is Prompt. So if you want to delete the already existed list in server than Select Automatic. And if you want to keep it your existed list with item than select None. So best solution is keep it as a NONE.

The URL or name of this list instance conflicts with a list instance already on the server in visual studio 2013 in SharePoint
The URL or name of this list instance conflicts with a list instance already on the server in visual studio 2013 in SharePoint

Hope this will help you !!!

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About Navneet Singh

I am Navneet Singh, Working at C3it software solutions pvt. ltd. in Pune. My core skills are SharePoint 2013, Office 365, SharePoint 2010, SharePoint Designer, SharePoint Designer Workflow, Nintex Workflow, Infopath, Webpart, CSOM/SSOM, Power-shell, C#, ASP.NET and SQL Server.

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