Hi, after trying to upgrade from `2.0.1` to `2.0.2...

# ktor

[dodalovic]

Hi, after trying to upgrade from 2.0.1 to 2.0.2 my tests using externalServices started failing. Any experience of that kind?

[e5l]

Hi @dodalovic, could you share a sample?

[dodalovic]

Unfortunately, this is my clients code, so can't do it.
I saw this ticket https://youtrack.jetbrains.com/issue/KTOR-4373 that may have to do something with it

[dodalovic]

some mocked services started producing 406 instead of following given instructions

[e5l]

@Rustam Siniukov do you have any ideas?

[dodalovic]

We're using

"io.ktor.server.cio.EngineMain"

if of any importance

[dodalovic]

With gradle.properties

ktor_version=2.0.1
kotlin_version=1.6.20
logback_version=1.2.11
kotlin.code.style=official
kotlinresult_version=1.1.14

Project dependencies.kt

[Aleksei Tirman [JB]]

Is it possible to at least trace from where 406 status code is returned? There are two places here and here.

[dodalovic]

If I knew how, yes

[Aleksei Tirman [JB]]

You can set breakpoints on those two lines of code, run your tests in the debug mode and then copy a stack trace.

[dodalovic]

Untitled.txt

Untitled.txt

[Aleksei Tirman [JB]]

Seems like the 406 is returned because the body wasn’t transformed to OutgoingContent in the ApplicationSendPipeline.Render and ApplicationSendPipeline.Transform phases.

[dodalovic]

req / response body?

[Aleksei Tirman [JB]]

Response body

[Rustam Siniukov]

Probably it’s not related to external services, but one of the fixes around ContentNegotiation /`DefaultTransform` .

[Rustam Siniukov]

Please create a simplified snippet of your code

[dodalovic]

I'll try to do it