Error when calling WithLocalizedMessage

• FluentValidation version: 8.1.3
• ASP.NET Core 2.2

I’m getting this error when calling .WithLocalizedMessage(typeof(SharedResource), “Min”):

System.ArgumentException: ‘Cannot bind to the target method because its signature or security transparency is not compatible with that of the delegate type.’

SharedResources is a empty class, with the same name of my resources resx (SharedResource.resx).

Looking at the FluentValidation code, it occurs at LocalizedStringSource.BuildResourceAccessor, in this section (line 74):

var accessor = (Func<string>)property.GetMethod.CreateDelegate(typeof(Func<string>));

I just don’t know what to do.

Thank you guys!

[JeremySkinner]

Added: https://fluentvalidation.net/localization#istringlocalizer I also accept pull requests for the documentation which you’re welcome to contribute to, if you see anything that’s not clear or think should be improved.

[JeremySkinner]

Ok if you’re using the automatic registration then they’ll be transient anyway.

Glad it’s working for you now, but feel free to re-open the issue if you are able to reproduce the issue in the future.