FluentValidation 10.0+ breaking change

[ahuang321]

On a project where FluentValidation 10 was forced down. Per docs this included breaking changes:

https://docs.fluentvalidation.net/en/latest/upgrading-to-10.html

Currently running Ocelot 17.0 .NET Core 5.0, which now returns this error on startup:

Method not found: 'System.Collections.Generic.IList`1<FluentValidation.Results.ValidationFailure> FluentValidation.Results.ValidationResult.get_Errors()

[raschmitt]

Had a similar issue on a project of mine, not with Ocelot itself, but with another dependency that was also using FluentValidation.

I was trying to use Fluent Validation 10.x, while my dependency used 9.x, ended up having to downgrade fluent on my side.

Maybe it can solve your issue until they upgrade it here.

[Gurgen]

Could you please update FluentValidation to the latest version?

[Tsukasa42]

Same issue today. Latest Ocelot and FluentValidation. FluentValidation was added to a core component shared across services. Even though the ocelot service doesn't use it, it's still causing an issue.

[PatryxCShark]

Is the issue resolved? I also cannot use FluentValidation <= 10.3.4 because of other libraries and theit dependencies and I don't know how can I use Ocelot v17.0.0 now? Any tips?

[teomane]

Any update ?

[codehunter13]

any update on this?

[vaclavholusa]

Faced the same issue - got it resolved by explicitely installing FluentValidation 11.0.2 together with Ocelot 18.0.0

[raman-m]

Hi @ahuang321 Thanks for reporting 2 years ago! :smile_cat:

@raschmitt @Gurgen @Tsukasa42 @PatryxCShark @teomane @codehunter13 @vaclavholusa The FluentValidation package was updated in 19.0.2 release. The current version of the package is 11.5.2 Please update your Ocelot package reference to 19.0.2 version please! And consider upgrading the project to .NET 7 plz!

I'm going to close the issue...