Trying to migrate from ktor 1 5 3 to 1 6 0 in my multiplatfo

Question

Trying to migrate from ktor 1 5 3 to 1 6 0 in my multiplatform project but got a freeze exception when initialise HttpClient I found that there is already known issue with HashMaps <https github com Kotlin kotlinx serialization issues 1450> but looks like it is not my case There is my stack trace ```Uncaught Kotlin exception kotlin native concurrent InvalidMutabilityException mutation attempt of frozen kotlinx coroutines JobImpl 2516528 at 0 DriversAppApi 0x000000010155103f kfun kotlin Throwable lt init gt kotlin String + 95 Users teamcity3 buildAgent work 290aee0e088a1666 runtime src main kotlin kotlin Throwable kt 23 37 at 1 DriversAppApi 0x00000001015497ad kfun kotlin Exception lt init gt kotlin String + 93 Users teamcity3 buildAgent work 290aee0e088a1666 runtime src main kotlin kotlin Exceptions kt 23 44 at 2 DriversAppApi 0x0000000101549a1d kfun kotlin RuntimeException lt init gt kotlin String + 93 Users teamcity3 buildAgent work 290aee0e088a1666 runtime src main kotlin kotlin Exceptions kt 34 44 at 3 DriversAppApi 0x00000001015819fd kfun kotlin native concurrent InvalidMutabilityException lt init gt kotlin String + 93 Users teamcity3 buildAgent work 290aee0e088a1666 runtime src main kotlin kotlin native concurrent Freezing kt 22 60 at 4 DriversAppApi 0x0000000101581dcf ThrowInvalidMutabilityException + 431 Users teamcity3 buildAgent work 290aee0e088a1666 runtime src main kotlin kotlin native concurrent Internal kt 93 11 at 5 DriversAppApi 0x00000001016e5b50 MutationCheck + 128 at 6 DriversAppApi 0x00000001017ebda6 kfun kotlinx coroutines JobImpl lt init gt kotlinx coroutines Job + 150 opt buildAgent work 44ec6e850d5c63f0 kotlinx coroutines core common src JobSupport kt 1328 46 at 7 DriversAppApi 0x00000001017d692c kfun kotlinx coroutines Job kotlinx coroutines Job kotlinx coroutines CompletableJob + 188 opt buildAgent work 44ec6e850d5c63f0 kotlinx coroutines core common src Job kt 379 55 at 8 DriversAppApi 0x00000001019f9254 kfun io ktor client HttpClient lt init gt io ktor client engine HttpClientEngine io ktor client HttpClientConfig lt out|io ktor client engine HttpClientEngineConfig gt + 1796 Users administrator Documents agent work 8d547b974a7be21f ktor client ktor client core common src io ktor client HttpClient kt 87 45 at 9 DriversAppApi 0x00000001019fa310 kfun io ktor client HttpClient lt init gt io ktor client engine HttpClientEngine io ktor client HttpClientConfig lt out|io ktor client engine HttpClientEngineConfig gt kotlin Boolean + 144 Users administrator Documents agent work 8d547b974a7be21f ktor client ktor client core common src io ktor client HttpClient kt 81 9 at 10 DriversAppApi 0x00000001019f8ad5 kfun io ktor client HttpClient io ktor client engine HttpClientEngine kotlin Function1 lt io ktor client HttpClientConfig lt gt kotlin Unit gt io ktor client HttpClient + 517 Users administrator Documents agent work 8d547b974a7be21f ktor client ktor client core common src io ktor client HttpClient kt 62 17 at 11 DriversAppApi 0x00000001011b389d kfun com arrival adp drivers app api rest HttpClientFactory create io ktor client HttpClient + 285 Users alexander ivanov Development pmob sdrv graphql api tool sources drivers app api src commonMain kotlin com arrival adp drivers app api rest HttpClientFactory kt 31 16 ``` My version changes kotlin `1 4 32` gt `1 5 10` Ktor `1 5 3` gt `1 6 0` kotlinx coroutines `1 4 3 native mt` gt `1 5 0 native mt` kotlinx serialization `1 1 0` gt `1 2 1` Does somebody faced this issue

Aleksei Tirman [JB] · Answer

Could you please file an issue in YouTrack <https youtrack jetbrains com newIssue project=KTOR> with a sample code for reproduction attached

Aleksandr Ivanov · Answer

Yes At this moment I m trying to reproduce issue in demo project

Aleksandr Ivanov · Answer

It looks like I found the reason It is because of apollo library included in project When I removed apollo from project the problem is gone

Aleksandr Ivanov · Answer

< mbonnin> Hi Does apollo graphql library includes coroutines If so which version

mbonnin · Answer

Yes it does The specific version depends the apollo android version but it s not the `native mt` one

mbonnin · Answer

You can get it with ` gradlew dependencies` that should show all the transitives dependencies and how they are resolved

mbonnin · Answer

Maybe you need to force `coroutines mt` <https www apollographql com docs android essentials get started multiplatform multithreaded coroutines>

Aleksandr Ivanov · Answer

Let me try thank you

Aleksandr Ivanov · Answer

Yes it helps tada Thanks again