The type or namespace 'SharePointOnlineCredentials' could not be found.

Ariel M 51 Reputation points
2022-10-12T13:45:35.13+00:00

How do you resolve this error? I installed SharePoint.Client and SharePoint.Client.Runtime. I referenced Microsoft.SarePoint.Client in my app.

SharePoint
SharePoint
A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.
9,820 questions
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,362 questions
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  1. RaytheonXie_MSFT 32,081 Reputation points Microsoft Vendor
    2022-10-13T02:39:49.157+00:00

    Hi @Ariel M
    Per my test, please check if you created .NET standard instead of .NET framework. If so you will need to recreate a .NET framework like following
    249922-%E5%B1%8F%E5%B9%95%E6%88%AA%E5%9B%BE-2022-10-13-102006.png
    Then we can install CSOM by nuget package
    249892-%E5%B1%8F%E5%B9%95%E6%88%AA%E5%9B%BE-2022-10-13-100823.png
    249894-%E5%B1%8F%E5%B9%95%E6%88%AA%E5%9B%BE-2022-10-13-100856.png


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  1. Ariel M 51 Reputation points
    2022-10-17T17:02:00.367+00:00

    I added it but there's a yellow triangle with an exclamation mark in it on the reference.