MongoDB.Driver.MongoIncompatibleDriverException:

Question

MongoDB.Driver.MongoIncompatibleDriverException:

Nagireddi, Vijaya (US - Texas) 0

MongoDB.Driver.MongoIncompatibleDriverException using C# mongodb driver

ava lynn 0 Reputation points

2025-12-03T04:58:33.3933333+00:00
This error usually happens when your MongoDB server version is not compatible with the C# MongoDB driver version you are using.

To fix it:

Check your MongoDB server version.

Check your MongoDB C# driver version — make sure it supports your server version.

If needed, upgrade the driver in your project using NuGet, or downgrade the driver to match the server version.

Example NuGet command to update the driver:

Install-Package MongoDB.Driver -Version <compatible_version>

Make sure the driver and server versions are compatible, and the error should go away.
JuliaMarvin 17,190 Reputation points Volunteer Moderator

2025-12-03T16:35:08.37+00:00

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@ava lynn

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ava lynn 0 Reputation points

2025-12-03T04:58:33.3933333+00:00

This error usually happens when your MongoDB server version is not compatible with the C# MongoDB driver version you are using.

To fix it:

Check your MongoDB server version.

Check your MongoDB C# driver version — make sure it supports your server version.

If needed, upgrade the driver in your project using NuGet, or downgrade the driver to match the server version.

Example NuGet command to update the driver:

Install-Package MongoDB.Driver -Version <compatible_version>

Make sure the driver and server versions are compatible, and the error should go away.
JuliaMarvin 17,190 Reputation points Volunteer Moderator

2025-12-03T16:35:08.37+00:00

Moderator note

@ava lynn

Your willingness to help in Microsoft Q&A is appreciated, however please refrain from simply copying and pasting AI generated content.

Users are capable of asking copilot or other AI services themselves, most ask here because they want help from a real person with some experience.

Please read https://learn.microsoft.com/en-us/answers/support/ai-usage-policy

as well as https://learn.microsoft.com/en-us/answers/support/code-of-conduct

Answer 1

Thanks for sharing!
The error MongoDB.Driver.MongoIncompatibleDriverException occurs because the MongoDB C# driver version currently installed in your application is not compatible with your MongoDB server version.

Here are some steps which are helpful

Open your MongoDB shell or Compass and run db.version(), note the server version shown.
Open the project in Visual Studio or your code editor).
Open Package Manager Console (or use terminal).
Update the MongoDB C# driver to a version that matches your server. Use one of these commands:

Visual Studio : Update the package MongoDB.Driver -Version 2.14.1

.NET CLI (terminal): dotnet add package MongoDB.Driver -version 2.14.1

In the project: Clean the solution, then Rebuild the solution.
Restart the application.
Test the connection again.

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MongoDB.Driver.MongoIncompatibleDriverException:

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