I m trying to use kotlinx serialization in a MPP and run int

Question

I m trying to use kotlinx serialization in a MPP and run into this error Is there something that I do wrong disappointed ``` Exception in thread ForkJoinPool commonPool worker 1 kotlinx coroutines experimental CompletionHandlerException Exception in completion handler InvokeOnCompletion InvokeOnCompletion 55c536ef for DeferredCoroutine Completed 48184828 at kotlinx coroutines experimental JobSupport notifyCompletion JobSupport kt 1022 at kotlinx coroutines experimental JobSupport completeUpdateState JobSupport kt 229 at kotlinx coroutines experimental JobSupport updateState JobSupport kt 157 at kotlinx coroutines experimental JobSupport makeCompletingInternal JobSupport kt 568 at kotlinx coroutines experimental JobSupport makeCompletingOnce$kotlinx coroutines core JobSupport kt 552 at kotlinx coroutines experimental AbstractCoroutine resume AbstractCoroutine kt 103 at kotlin coroutines experimental jvm internal CoroutineImpl resume CoroutineImpl kt 41 at kotlin coroutines experimental jvm internal CoroutineImpl resume CoroutineImpl kt 41 at kotlin coroutines experimental jvm internal CoroutineImpl resume CoroutineImpl kt 41 at kotlin coroutines experimental jvm internal CoroutineImpl resume CoroutineImpl kt 41 at kotlin coroutines experimental jvm internal CoroutineImpl resume CoroutineImpl kt 41 at kotlin coroutines experimental jvm internal CoroutineImpl resume CoroutineImpl kt 41 at kotlin coroutines experimental jvm internal CoroutineImpl resume CoroutineImpl kt 41 at kotlin coroutines experimental jvm internal CoroutineImpl resume CoroutineImpl kt 41 at kotlin coroutines experimental jvm internal CoroutineImpl resume CoroutineImpl kt 41 at kotlin coroutines experimental jvm internal CoroutineImpl resume CoroutineImpl kt 41 at kotlinx coroutines experimental DispatchedTask$DefaultImpls run Dispatched kt 150 at kotlinx coroutines experimental AbstractContinuation run AbstractContinuation kt 19 at java util concurrent ForkJoinTask$RunnableExecuteAction exec ForkJoinTask java 1402 at java util concurrent ForkJoinTask doExec ForkJoinTask java 289 at java util concurrent ForkJoinPool$WorkQueue runTask ForkJoinPool java 1056 at java util concurrent ForkJoinPool runWorker ForkJoinPool java 1692 at java util concurrent ForkJoinWorkerThread run ForkJoinWorkerThread java 157 Caused by java lang NoClassDefFoundError kotlinx serialization json JSON at com khairilushan mpp datasource ProjectDataSource$Network$searchProject$$inlined$requestJson$1 invoke NetworkService kt 59 at com khairilushan mpp datasource ProjectDataSource$Network$searchProject$$inlined$requestJson$1 invoke NetworkService kt 10 at io ktor common client Promise complete utils kt 20 at io ktor common client JvmUtilsKt$promise$$inlined$also$lambda$1 invoke JvmUtils kt 13 at io ktor common client JvmUtilsKt$promise$$inlined$also$lambda$1 invoke JvmUtils kt at kotlinx coroutines experimental InvokeOnCompletion invoke JobSupport kt 906 at kotlinx coroutines experimental JobSupport notifyCompletion JobSupport kt 1018 22 more Caused by java lang ClassNotFoundException kotlinx serialization json JSON at java net URLClassLoader findClass URLClassLoader java 381 at java lang ClassLoader loadClass ClassLoader java 424 at sun misc Launcher$AppClassLoader loadClass Launcher java 331 at java lang ClassLoader loadClass ClassLoader java 357 29 more ```

khairil.ushan · Answer

Here is my NetworkService kt ``` abstract class NetworkService open val protocol = URLProtocol HTTPS open val port = 443 open val baseUrl = <http api github com|api github com> open val httpMethod = HttpMethod Get open val requestBody String = null open val headers Map lt String List lt String gt gt = mapOf abstract val path String val client HttpClient by lazy HttpClient inline fun lt reified ResultType Any gt requestJson params Map lt String String gt crossinline completion ResultType Throwable gt Unit request params result String error Throwable gt if result = null amp amp error == null completion JSON parse result null else if error = null completion null error inline fun lt reified ResultType Any gt requestJson params Map lt String String gt crossinline completion ResultType Throwable gt Unit promise client request method = httpMethod body = requestBody headers = this NetworkService headers toMutableMap url apply protocol = this NetworkService protocol port = this NetworkService port host = baseUrl val query = params map $ it key =$ it value joinToString amp encodedPath = $path $query then completion JSON parse it body null catch completion null it ```

khairil.ushan · Answer

That `NetworkService kt 59` is this one gt `completion JSON parse it body null `

karelpeeters · Answer

Does it work fine without any coroutine stuff

karelpeeters · Answer

It just looks like you don t have the runtime dependencies in the classpath or something

khairil.ushan · Answer

On my Project level build gradle I have this ``` classpath org jetbrains kotlinx kotlinx gradle serialization plugin $serialization version ``` On my common module s build gradle I added this ``` compile org jetbrains kotlinx kotlinx serialization runtime common $serialization version ``` And in my jvm module s build gradle I have this ``` compile org jetbrains kotlinx kotlinx serialization runtime $serialization version ```

khairil.ushan · Answer

Aaah I add another buildScript block in my jvm module that contains serializations classpath and the error is gone hmm Before i put serializations classpath on my project level build gradle

karelpeeters · Answer

If it works slightly smiling face

khairil.ushan · Answer

ahah Oh ya btw < karelpeeters> another question if you dont mind If i have large json but in my model i just want to parse some field why I got error like ``` Caused by kotlinx serialization SerializationException Strict JSON encountered unknown key id ``` I dont want to parse that `id` field Is there any configuration for this

karelpeeters · Answer

I don t know really better ask in the main channel

khairil.ushan · Answer

Oh sorry just do a little Googling and found the answer `JSON nonstrict parse ` smile

karelpeeters · Answer

Even better