'Could not load file or assembly 'Core.Entities, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'

Question

I get such an error when I run the project.

'System.BadImageFormatException: 'Could not load file or assembly 'Core.Entities, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'. Format of the executable (.exe) or library (.dll) is invalid.''

Project> Properties> Build> Platform Target: Any CPU selected.

I see this happen when you are running the wrong bit version x86 on x64 or visa versa. — Pete -S-, Jul 22 '20 at 20:59
You running your asp.net app against IIS? If so, double-check that your application pool is running 64-bit (which should be the default). — Pete -S-, Jul 22 '20 at 21:01
This looks like a similar issue that you are having: https://stackoverflow.com/questions/11370344/could-not-load-file-or-assembly-an-attempt-was-made-to-load-a-program-with-a — Pete -S-, Jul 22 '20 at 21:05

score 0 · Answer 1 · answered Sep 03 '22 at 17:17

I got the same error some time ago.

Somehow, one of the project's .dll was deleted and it wasn't being loaded anymore.

What to do

If your situation is the same as I past throw, here is how you should proceed:

Step 1

As you can see, my solution Criativa contains a C# project library called Criativa.Infra.Repository, when accessing the obj > Debug > net6.0 we will find no .dll, and this is possibly your problem.

Step 2

To fix it, open the solution on Visual Studio, find your project, click with the right button, and select "Rebuild".

Finish

After these steps, if your problem was the non-existence of the .dll file, it will be running now.

Best regards, Angelo.

'Could not load file or assembly 'Core.Entities, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'

1 Answers1

What to do

Step 1

Step 2

Finish