No new project is created in Visual Studio 2019. Error "Object reference not set to instance of an object"

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No new project is created in Visual Studio 2019. Error!

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обновлено: 8 April 2023

Problem!

Create a new project in Visual Studio 2019.
Error appears: Object reference not set to instance of an object

Decision

1) Open Visual Studio Installer
2) Click Repair

Attention! After you press Restart , the computer will restart.

Let's wait for Windows to boot:
Open Visual Studio 2019 and create a new project.
The project will be created without errors.

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Error when opening a project in Visual Studio 2019: "project requires 'SQL Server 2012 Express LocalDB' which is not installed on this computer"

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Объявления

• Download and install Visual Studio 2026, 2022, 2019, 2017 to study C#

• Open Visual Studio

• No new project is created in Visual Studio 2019. Error "Object reference not set to instance of an object"

• Error when opening a project in Visual Studio 2019: "project requires 'SQL Server 2012 Express LocalDB' which is not installed on this computer"

• Remove NuGet and download new version NuGet in Visual Studio

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