[Solved] The file you imported is not valid. Verify that the file is a web part description file (*.webpart or *.dwp) and that it contains well-formed XML SharePoint Error

In this SharePoint PnP tutorial, We will discuss the solution of an error as “The file you imported is not valid. Verify that the file is a web part description file (*.webpart or *.dwp) and that it contains well-formed XML“.

If you are new to PnP SharePoint tutorials, you can read below tutorials:

• SharePoint Online Development using Patterns and Practices (PnP)
• Create Folder and Subfolder in SharePoint Document Library using PnP Core CSOM Library

Recently, I was working with PnP SharePoint ASP.NET Web Application in Visual Studio 2017. There, I have added a Content Search Web Part using CSOM. To add this Content search web part, you have to map the content search file path from the web part gallery. I was mapping the file path as [string webPartXml = Server.MapPath(@”~/ContentSearch.webpart“);]

While I was running this CSOM code, an error occurred as “The file you imported is not valid. Verify that the file is a web part description file (*.webpart or *.dwp) and that it contains well-formed XML“. You can see the error message in below screenshot.

The file you imported is not valid. SharePoint verify that the file is a web part description file (*.webpart or *.dwp) and that it contains well-formed XML

The Solution of this above error is: You should save the Content Search file extension as “.xml” and map the file path as:
[string webPartXml = Server.MapPath(@”~/ContentSearch.xml”);]. Once you will pass this file Path and again run the code, then it will execute and give the appropriate result.

Hence in this SharePoint tutorial, We discussed the solution of an error as “The file you imported is not valid. verify that the file is a web part description file (*.webpart or *.dwp) and that it contains well-formed XML“. By using this above solution, You can overcome this type of issue.

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