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Scaffold-Dbcontext build failed using EFCore commands

Today in this article, we will cover below aspects,

Issue Description

The EFCore-based application gives scaffold-dbcontext build failed error when scaffolding the entities using the PMC window in Visual Studio IDE,

Error: "Build Failed"

Resolution

The issue was found to be how the project is being built. This error I was able to reproduce recently using the EFCore version.

This issue could also exist in the lower version of EFCore.

To fix the issue please follow below

Step1:

Before arriving at the fix please make sure to install the EFCore tools properly.

Please see this article for more details: Getting started EFCore in .NET Core

Step2:

Please make sure to set up the project as current in the PMC window as below,

Step3:

Please make sure each project in your Solution (.sln) is compiling and building successfully.

When you run scaffold-dbcontext commands, the commands basically will run for all the projects.

So your all projects in the project must get compiled and built successfully even if the project is not meant to run for the scaffolding.

I am not sure if this is a limitation or by the design.

Surprisingly the issue was resolved after fixing the build error in the other projects.

If you still face any issues, Alternately, you can use the EFCore global tool as discussed in the article Scaffolding EFCore DBContext

References:

• Understanding EFCore Scaffold-Dbcontext Commands in .NET Core

Did I miss anything else in these resolution steps?

Did the above steps resolve your issue? Please sound off your comments below!

Happy Coding !!

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