Anyone by chance also run in to following after updating to

Question

Anyone by chance also run in to following after updating to Ktor 1 4 1 <https youtrack jetbrains com issue KTOR 1087>

russhwolf · Answer

I don t hit that despite a very similar setup here <https github com russhwolf multiplatform hello blob master shared client src commonMain kotlin hello kt>

russhwolf · Answer

I wonder if sqldelight is causing you to pull in `1 3 9 native mt` instead of `1 3 9 native mt 2`

John O&apos;Reilly · Answer

I m using `isForce = true` on the kotlinx coroutines dependency

russhwolf · Answer

Check ` gradlew dependencies` anyway and see if there s anything surprising

John O&apos;Reilly · Answer

yeah it s using `mt 2` e g for sqldelight ```org jetbrains kotlinx kotlinx coroutines core 1 3 9 gt 1 3 9 native mt 2```

John O&apos;Reilly · Answer

I updated KaMPKit to 1 4 1 locally and not seeing any issues I tried making calls to `ensureNeverFrozen ` in my project that it s using but then get different crash

russhwolf · Answer

That should help diagnose where your freeze is coming from

John O&apos;Reilly · Answer

it shows `eopleInSpaceApi 2f31fb8 has failed first blocker is com surrus common remote PeopleInSpaceApi` which I guess is point that ktor client request is being made

John O&apos;Reilly · Answer

```kotlin native concurrent FreezingException freezing of lt no name provided gt 1 3b81ce8 has failed first blocker is com surrus common remote PeopleInSpaceApi 35c88a8 at 0 PeopleInSpaceSwiftUI 0x000000010d3ceccd kfun kotlin Throwable lt init gt kotlin String + 93 at 1 PeopleInSpaceSwiftUI 0x000000010d3c787b kfun kotlin Exception lt init gt kotlin String + 91 at 2 PeopleInSpaceSwiftUI 0x000000010d3c7acb kfun kotlin RuntimeException lt init gt kotlin String + 91 at 3 PeopleInSpaceSwiftUI 0x000000010d3fd8f3 kfun kotlin native concurrent FreezingException lt init gt kotlin Any kotlin Any + 643 at 4 PeopleInSpaceSwiftUI 0x000000010d3fef77 ThrowFreezingException + 231 at 5 PeopleInSpaceSwiftUI 0x000000010d4ee10f FreezeSubgraph + 2815 at 6 PeopleInSpaceSwiftUI 0x000000010d50733b Kotlin Worker freezeInternal + 27 at 7 PeopleInSpaceSwiftUI 0x000000010d3fda1e kfun kotlin native concurrent freeze 0 0 0 lt kotlin Any gt 0 0 + 62 at 8 PeopleInSpaceSwiftUI 0x000000010d758df2 kfun io ktor util collections internal MapNode lt no name provided gt 1 lt init gt internal 33 + 338 at 9 PeopleInSpaceSwiftUI 0x000000010d75776d kfun io ktor util collections internal MapNode lt init gt 1 0 1 1 + 701 at 10 PeopleInSpaceSwiftUI 0x000000010d748461 kfun io ktor util collections ConcurrentMap put$lambda 3 internal + 1137 at 11 PeopleInSpaceSwiftUI 0x000000010d74c935 kfun io ktor util collections ConcurrentMap $put$lambda 3$FUNCTION REFERENCE$25 invoke internal + 165 at 12 PeopleInSpaceSwiftUI 0x000000010d7473d7 kfun io ktor util collections ConcurrentMap locked internal + 439 at 13 PeopleInSpaceSwiftUI 0x000000010d745adb kfun io ktor util collections ConcurrentMap put 1 0 1 1 1 1 + 379 at 14 PeopleInSpaceSwiftUI 0x000000010d7ce6e1 kfun io ktor client HttpClientConfig install io ktor client features HttpClientFeature lt 0 0 0 1 gt kotlin Function1 lt 0 0 kotlin Unit gt 0 lt kotlin Any gt 1 lt kotlin Any gt + 1041 at 15 PeopleInSpaceSwiftUI 0x000000010d32ac62 kfun com surrus common remote PeopleInSpaceApi lt init gt $lambda 4$lambda 3 internal + 386 at 16 PeopleInSpaceSwiftUI 0x000000010d32b59f kfun com surrus common remote PeopleInSpaceApi $ lt init gt $lambda 4$lambda 3$FUNCTION REFERENCE$16 invoke internal + 95 at 17 PeopleInSpaceSwiftUI 0x000000010d32b61f kfun com surrus common remote PeopleInSpaceApi $ lt init gt $lambda 4$lambda 3$FUNCTION REFERENCE$16 $ lt bridge UNNN gt invoke 1 0 internal + 95 at 18 PeopleInSpaceSwiftUI 0x000000010d7c8013 kfun io ktor client HttpClient io ktor client engine HttpClientEngineFactory lt 0 0 gt kotlin Function1 lt io ktor client HttpClientConfig lt 0 0 gt kotlin Unit gt 0 lt io ktor client engine HttpClientEngineConfig gt io ktor client HttpClient + 595 at 19 PeopleInSpaceSwiftUI 0x000000010d81ae1e kfun io ktor client HttpClient kotlin Function1 lt io ktor client HttpClientConfig lt gt kotlin Unit gt io ktor client HttpClient + 638 at 20 PeopleInSpaceSwiftUI 0x000000010d32ae7f kfun com surrus common remote PeopleInSpaceApi lt init gt $lambda 4 internal + 223 at 21 PeopleInSpaceSwiftUI 0x000000010d32b15d kfun com surrus common remote PeopleInSpaceApi $ lt init gt $lambda 4$FUNCTION REFERENCE$13 invoke internal + 157 at 22 PeopleInSpaceSwiftUI 0x000000010d3ffe15 kfun kotlin native concurrent FreezeAwareLazyImpl getOrInit internal + 1045 at 23 PeopleInSpaceSwiftUI 0x000000010d4005ae kfun kotlin native concurrent FreezeAwareLazyImpl lt get value gt 1 0 + 670 at 24 PeopleInSpaceSwiftUI 0x000000010d3254a3 kfun com surrus common remote PeopleInSpaceApi lt get client gt internal + 323 at 25 PeopleInSpaceSwiftUI 0x000000010d3261d7 kfun com surrus common remote PeopleInSpaceApi $fetchPeopleCOROUTINE$0 invokeSuspend kotlin Result lt kotlin Any gt kotlin Any + 2983 at 26 PeopleInSpaceSwiftUI 0x000000010d327d94 kfun com surrus common remote PeopleInSpaceApi fetchPeople com surrus common remote AstroResult + 244 at 27 PeopleInSpaceSwiftUI 0x000000010d32e186 kfun com surrus common repository PeopleInSpaceRepository $fetchPeople$lambda 1COROUTINE$5 invokeSuspend internal + 726 at 28 PeopleInSpaceSwiftUI 0x000000010d3f07f6 kfun kotlin coroutines native internal BaseContinuationImpl resumeWith kotlin Result lt kotlin Any gt + 758 at 29 PeopleInSpaceSwiftUI 0x000000010d5bba52 kfun kotlinx coroutines DispatchedTask run + 2802```

John O&apos;Reilly · Answer

full stack

John O&apos;Reilly · Answer

looking for differences with KaMPKit but at least ktor interaction looks to be much the same

louiscad · Answer

Looks like something < ribesg> encountered

louiscad · Answer

That depressing freezing of lt no name provided gt sweat smile

ribesg · Answer

I ve encountered them all

ribesg · Answer

And I m far from done

John O&apos;Reilly · Answer

this has only started happening for this project after changing from ktor 1 4 0 to 1 4 1 or perhaps some of the related dependency updates

John O&apos;Reilly · Answer

I m still not clear what freezing of lt no name provided gt 1 3b81ce8 has failed is supposed to mean exactly is it that ktor did attempt to freeze something to allow sharing across threads but it failed thus leading to original `InvalidMutabilityException` with Frozen during lazy computation message

John O&apos;Reilly · Answer

as reported in cc < mbonnin>

John O&apos;Reilly · Answer

fwiw this is where that Frozen during lazy computation message is coming from <https github com JetBrains kotlin native blob master runtime src main kotlin kotlin native concurrent Lazy kt>

John O&apos;Reilly · Answer

and that in turn is used by ```public actual fun lt T gt lazy initializer gt T Lazy lt T gt = FreezeAwareLazyImpl initializer ```

John O&apos;Reilly · Answer

and that looks to be difference between PeopleInSpace and KaMPKit I have following ``` private val client by lazy HttpClient ```

John O&apos;Reilly · Answer

I m getting Koin error when I remove use of lazy looking to fix that hopefully and see if that resolves the original issue but seems like this is bug since those version updates also updated <https youtrack jetbrains com issue KTOR 1087>

John O&apos;Reilly · Answer

the koin error `InstanceCreationException Could not create instance for Single com surrus common remote PeopleInSpaceApi` seems in turn to be related to another ```InvalidMutabilityException mutation attempt of frozen com surrus common remote PeopleInSpaceApi ```

russhwolf · Answer

Are you hitting something Koin related from a background thread Koin tries to keep its initialization main threaded to avoid unexpected freezing

John O&apos;Reilly · Answer

I don t believe I am pretty much using same pattern as used in KaMPKit

John O&apos;Reilly · Answer

but will do closer comparison again and see if I can see any difference

John O&apos;Reilly · Answer

seems to be triggered by changing `HttpClient` to not use `by lazy` but again KaMPKit is also doing that so not sure yet what difference is

John O&apos;Reilly · Answer

so I guess the change to not use `by lazy` means that the `HttpClient` instance is being created when `PeopleInSpaceApi` is created triggering `mutation attempt of frozen com surrus common remote PeopleInSpaceApi`

John O&apos;Reilly · Answer

looks like flow is a little different in KaMPKit in that it has ```breedModel = BreedModel ``` in `NativeViewModel` and `BreedModel` then uses Koin to inject dependencies like `KtorApi`

John O&apos;Reilly · Answer

anyway going off topic from original `Ktor` issue slightly smiling face

russhwolf · Answer

I think it s relevant because it may be an issue of application logic and K N threading rather than a ktor thing

John O&apos;Reilly · Answer

I wonder if fact that the repository class is being created in Swift code is a factor

louiscad · Answer

Can you check it s init on the main thread in Swift code

John O&apos;Reilly · Answer

yeah checked that

John O&apos;Reilly · Answer

looks like a few concurrency related changes made to `HttpClient` for 1 4 1 release <https github com ktorio ktor commit 3471ee7e00a0fdf09375d9d16617d5540cc02a9a diff cac393be67723a02e3a8cc96c0f298a5>

John O&apos;Reilly · Answer

jetbrains folks have reproduced issue <https youtrack jetbrains com issue KTOR 1087>

nrobi · Answer

Facing the same issue < John O Reilly> did you find out anything more in the last month

John O&apos;Reilly · Answer

No still haven t updated to that version that issue still seems to be open

ribesg · Answer

The Ktor client 1 4+ never worked outside the main thread

nrobi · Answer

Yupp I was getting first `IncorrectDereferenceException illegal attempt to access non shared object from other thread` which makes sense and was fixed by explicitly freezing the KtorApi Then I was hitting `InvalidMutabilityException` converted the `KtorApi` to an object and made it ` ThreadLocal` but the `InvalidMutabilityException` still occured The IncorrectDereferenceException should be fixed by <https github com ktorio ktor pull 2092> with the new release I still don t quite get why `KtorApi` needs to be explicitly frozen if it s an object If I m correct even if ` ThreadLocal` introduces side effects new issues it should ve fixed `InvalidMutabilityException`

ribesg · Answer

Just make your request calls on the main thread