I m trying to use CIO and I m just getting around to running

Question

I m trying to use CIO and I m just getting around to running my iOS app I m seeing this illegal state exception and I m wondering if there is a flag I m missing that will allow me to use it Should I not use it all until it gets out of the experimental phase

Trey · Answer

```Caused by kotlin IllegalStateException This API is only supported for experimental K N memory model at 0 shared 0x0000000103c17eec kfun kotlin Throwable lt init gt kotlin String + 96 at 1 shared 0x0000000103c10f80 kfun kotlin Exception lt init gt kotlin String + 92 at 2 shared 0x0000000103c111b4 kfun kotlin RuntimeException lt init gt kotlin String + 92 at 3 shared 0x0000000103c117cc kfun kotlin IllegalStateException lt init gt kotlin String + 92 at 4 shared 0x0000000103ecb730 kfun kotlinx coroutines newSingleThreadContext kotlin String kotlinx coroutines CloseableCoroutineDispatcher + 236 at 5 shared 0x00000001040d9f28 kfun io ktor network selector WorkerSelectorManager lt init gt + 192 at 6 shared 0x00000001040d76c8 kfun io ktor network selector SelectorManager kotlin coroutines CoroutineContext io ktor network selector SelectorManager + 132 at 7 shared 0x00000001040f20d8 kfun io ktor client engine cio CIOEngine lt init gt $lambda 1 internal + 152 at 8 shared 0x00000001040f3778 kfun io ktor client engine cio CIOEngine $ lt init gt $lambda 1$FUNCTION REFERENCE$3 invoke internal + 132 at 9 shared 0x0000000103c46034 kfun kotlin native concurrent FreezeAwareLazyImpl getOrInit internal + 760 at 10 shared 0x0000000103c4672c kfun kotlin native concurrent FreezeAwareLazyImpl lt get value gt 1 0 + 524 at 11 shared 0x00000001040f068c kfun io ktor client engine cio CIOEngine lt get selectorManager gt internal + 256 at 12 shared 0x00000001040efb08 kfun io ktor client engine cio CIOEngine lt init gt io ktor client engine cio CIOEngineConfig + 1540```

Landry Norris · Answer

You can only use the new memory model with CIO

Landry Norris · Answer

```kotlin native binary memoryModel=experimental kotlin native binary freezing=disabled```

Landry Norris · Answer

I ve been using the new mm for months with no issues I switched over during the first dev preview in 1 6

Trey · Answer

Can you point me to the docs on how to switch to the new memory model I assume there is more to it than those two lines

Mitchell Syer · Answer

Trey · Answer

Sweet Thank you

Landry Norris · Answer

Should just be the two lines There s more you can add if you want to debug the mm in that article

Landry Norris · Answer

I would also add `kotlin native cacheKind=none` for now since caching can be iffy with the new mm right now