My .netframework version does not work with my microsoft.sharepointclient.dll version.

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I am trying to add some CSOM functionality to my C# program such that I will be allowed to do CRUD operations on a Microsoft List (aka SharePoint List). Assuming you know what CSOM and CRUD is, I will not bore you with the details of the specifics. The end result of adding the references to the DLLS and the proper namespace, I get an error in my IDE:

> "Could not install package 'Microsoft.SharePoint.Client.dll
> 15.0.4420.1017'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.7.2', but the package does not
> contain any assembly references or content files that are compatible
> with that framework. For more information, contact the package
> author."

And so, I have two questions:

What .NetFramework version is compatible with Microsoft.SharePoint.Client.dll 15.0.4420.1017 ?
(question 1)

What Microsoft.SharePoint.Client.dll version is compatible with .NETFramework Version=v4.7.2 ?
(question 2)

What I have tried:

I tried using my local version of the DLL's but I thought I would ask wich version is compatable instead of doing extensive trial-ane-error.

Posted 10-Jun-24 18:38pm

Xarzu

Updated 10-Jun-24 19:55pm

Pete O'Hanlon

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Pete O'Hanlon · Answer 1 · 2024-06-10T21:14:00

Solution 1

Given that this version was last updated in 2014, it's highly likely that you are looking at .NET 4.5/.4.5.1 as these were the Visual Studio 2013 versions of .NET Framework.

Posted 10-Jun-24 21:14pm

Pete O'Hanlon

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Richard Deeming 11-Jun-24 3:44am

Looking at the dependencies in the NuGet package explorer[^], it seems you are correct. :)
mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089

Richard Deeming · Answer 2 · 2024-06-10T21:47:00

Solution 3

Be very careful. The package you are trying to reference is not published by Microsoft, and could be an attempt to distribute malware.

Use the official Microsoft NuGet package instead:
NuGet Gallery | Microsoft.SharePointOnline.CSOM 16.1.24908.12000[^]

Posted 10-Jun-24 21:47pm

Richard Deeming

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Pete O'Hanlon 11-Jun-24 3:48am

Excellent advice, and a timely warning that NuGet isn't always a clean playground.