Hey guys, I am introducing http4k in a project at...

# http4k

[Paulien van Alst]

Hey guys, I am introducing http4k in a project at work and I somehow get an error when serializing with Jackson in my http client: java.lang.NoSuchMethodError: com.fasterxml.jackson.module.kotlin.KotlinModule
I am using versio 2.10.2 of com.fasterxml.jaclson.module and version 4.8.0.0 of http4k. How can I fix this?

[Paulien van Alst]

nvm upgrading to 2.12.1 was fixing it….

[dave]

🙂

[dave]

One other thing - you don't actually need to import Jackson separately as it's transitive on the Jackson module.

[Paulien van Alst]

I know that, but I try to integrate it in a project where jackson was already present ..

[dave]

aha - ok. 🙂 . Jackson does tend to have incompatibilities which end up with this type of thing. Also worthy of caution is when the version of Kotlin-reflect JAR varies because that also affects things. And playing with a Kotlin 1.5.0 upgrade yesterday also threw up a few potentially worrying bits around this.. 🙄

[dave]

@Paulien van Alst if you get any other weird behaviours, just yell and we'll see if we can help. 🙂

[Paulien van Alst]

haha I can imagine! If I see weird things I will pop-up again! Thank you for your help