could not load file or assembly'Microsoft.data.sqlclient'

Niyati Savaliya 0

how to solve this error

John Dyson 45 Reputation points

2024-07-27T06:36:37.1666667+00:00

I also have a similar issue this time with with creating a service-based Database within a dll.

This is the error I recieve:

The Sql client version 5.2.1 has been added as a package reference:

Any thoughts? Thanks

4 answers

Andreas G 10 Reputation points

2024-05-22T16:12:37.0366667+00:00

Visual studio 2022 has an incomplete installation... using the "Data source configuration wizard" it misses the Microsoft.Data.SQLclient (VS2022 17.10). It is a feature / component of VS2022 and not of my project... it's made to generate code so I wont have to type everything by hand. I have installed all of the SQL features in the VS setup.

The hint with the Nuget package is wrong - I cannot install it into the project then it says the project has no reference to it. So other way around..

The Wizard tells me "install missing packages" when choosing any of the .net options but it fails to do so... I expect that this is in the VS setup somewhere and not in a Nuget package that I have to add to each and every project I am creating, "other" works then ,net data provider for ODBC.

And that is "dirty" because at the very end it asks again for Microsoft.Data.SQLClient.

Going further "report feedback" gest stuck in a stupid java script error, VS2022 also cannot log in with that javascript error....
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Isuru Weerasinghe 0 Reputation points

2024-06-06T06:15:20.6166667+00:00

i also have this error but still no solution

Steven Xi 6 Reputation points

2024-07-04T09:25:51.6966667+00:00

Same here.

Kleidi Kumbaro 1 Reputation point

2024-11-13T23:14:50.35+00:00

Caution! use of source control is recommended before using nuget to install this package and fix this error.

I had exactly the same problem and fixed it by installing the required package (using nuget Install-Package Microsoft.Data.SqlClient -Version 5.0.0) even though my project did not specifically require that package. None of my solutions were working and clearly this was not a project/nuget issue, rather a vs2022 issue. However installing the package to the global folder did solve the problem. After I just issued a git restore to return my project files to the previous state as that package installed with it 20+ other packages that were not needed.

Now simply the fact that there is a folder with the nupkg files in C:\Users{username}.nuget\packages\microsoft.data.sqlclient\5.0.0 has eased the vs2022 pain and perhaps if you can find that folder and paste it there will solve the issue without the need to do git reset
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SurferOnWww 3,286 Reputation points

2023-09-13T01:23:10.2033333+00:00

Please install the NuGet package:
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QiYou-MSFT 4,321 Reputation points Microsoft Vendor

2023-09-13T05:42:28.2833333+00:00

Hi @Niyati Savaliya

Step 1: Install "Microsoft.data.sqlclient" on Nuget Package Manager

Step 2: Check whether the addition is successful under Reference

Step 3: Call at the beginning of the class you want to call

Best regards,
Qi You

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Malcolm Fellmann 5 Reputation points

2024-04-21T14:41:24.4433333+00:00

Problem not solved.

In Solution EXplorer I have no "References" but I find the files listed under "Packages"

Steven Xi 6 Reputation points

2024-07-04T09:27:26.8866667+00:00

It's a VS instllation problem, not nuget of the project.
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Bruce (SqlWork.com) 67,406 Reputation points

2023-09-12T17:46:34.14+00:00

be sure you added the nuget package and restored.
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could not load file or assembly'Microsoft.data.sqlclient'

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