Hi I have a multiplatform library in which I am using kotlin

Question

Hi I have a multiplatform library in which I am using kotlinx datetime But for Android API 21 I get `NoClassDefFoundException` when I use this `Instant fromEpochMilliseconds timeInMillis ` stack trace is in thread

Rohan Maity · Answer

stack tace ```java lang NoClassDefFoundError kotlinx datetime Instant at io github rotbolt flakerandroidui elements listitem NetworkRequestItemKt$NetworkRequestItem$1 invoke NetworkRequestItem kt 90 at io github rotbolt flakerandroidui elements listitem NetworkRequestItemKt$NetworkRequestItem$1 invoke NetworkRequestItem kt 44 at androidx compose runtime internal ComposableLambdaImpl invoke ComposableLambda jvm kt 116 at androidx compose runtime internal ComposableLambdaImpl invoke ComposableLambda jvm kt 34 at androidx compose material3 CardKt$Card$1 invoke Card kt 806 at androidx compose material3 CardKt$Card$1 invoke Card kt 92 at androidx compose runtime internal ComposableLambdaImpl invoke ComposableLambda jvm kt 107 at androidx compose runtime internal ComposableLambdaImpl invoke ComposableLambda jvm kt 34 at androidx compose material3 SurfaceKt$Surface$1 invoke Surface kt 132 at androidx compose material3 SurfaceKt$Surface$1 invoke Surface kt 114 at androidx compose runtime internal ComposableLambdaImpl invoke ComposableLambda jvm kt 107 at androidx compose runtime internal ComposableLambdaImpl invoke ComposableLambda jvm kt 34 at androidx compose runtime CompositionLocalKt CompositionLocalProvider CompositionLocal kt 228 at androidx compose material3 SurfaceKt Surface T9BRK9s Surface kt 111 at androidx compose material3 CardKt Card Card kt 84 at io github rotbolt flakerandroidui elements listitem NetworkRequestItemKt NetworkRequestItem NetworkRequestItem kt 39 at io github rotbolt flakerandroidui components lists NetworkRequestListKt$NetworkRequestList$2$invoke$lambda$1$$inlined$items$default$4 invoke LazyDsl kt 424 at io github rotbolt flakerandroidui components lists NetworkRequestListKt$NetworkRequestList$2$invoke$lambda$1$$inlined$items$default$4 invoke LazyDsl kt 145 at androidx compose runtime internal ComposableLambdaImpl invoke ComposableLambda jvm kt 135 at androidx compose runtime internal ComposableLambdaImpl invoke ComposableLambda jvm kt 34 at androidx compose foundation lazy LazyListItemProviderImpl$1$1 invoke LazyListItemProvider kt 89 at androidx compose foundation lazy LazyListItemProviderImpl$1$1 invoke LazyListItemProvider kt 88 at androidx compose runtime internal ComposableLambdaImpl invoke ComposableLambda jvm kt 107 at androidx compose runtime internal ComposableLambdaImpl invoke ComposableLambda jvm kt 34 at androidx compose runtime CompositionLocalKt CompositionLocalProvider CompositionLocal kt 228 at androidx compose foundation lazy layout LazyLayoutPinnableItemKt LazyLayoutPinnableItem LazyLayoutPinnableItem kt 53 at androidx compose foundation lazy LazyListItemProviderImpl$1 invoke LazyListItemProvider kt 84 at androidx compose foundation lazy LazyListItemProviderImpl$1 invoke LazyListItemProvider kt 82 at androidx compose runtime internal ComposableLambdaImpl invoke ComposableLambda jvm kt 135 at androidx compose runtime internal ComposableLambdaImpl invoke ComposableLambda jvm kt 34 at androidx compose foundation lazy layout DefaultLazyLayoutItemsProvider Item LazyLayoutItemProvider kt 118 at androidx compose foundation lazy LazyListItemProviderImpl Item LazyListItemProvider kt at androidx compose foundation lazy layout DefaultDelegatingLazyLayoutItemProvider Item LazyLayoutItemProvider kt 196 at androidx compose foundation lazy LazyListItemProviderKt$rememberLazyListItemProvider$1$1 Item LazyListItemProvider kt at androidx compose foundation lazy layout LazyLayoutItemContentFactory$CachedItemContent$createContentLambda$1$1 invoke LazyLayoutItemContentFactory kt 99 at androidx compose foundation lazy layout LazyLayoutItemContentFactory$CachedItemContent$createContentLambda$1$1 invoke LazyLayoutItemContentFactory kt 98 at androidx compose runtime internal ComposableLambdaImpl invoke ComposableLambda jvm kt 107 at androidx compose runtime internal ComposableLambdaImpl invoke ComposableLambda jvm kt 34 at androidx```

Rohan Maity · Answer

I have set Java and Kotlin source compatibility version to Java 11

jw · Answer

You need to enable core library desugaring

jw · Answer

Rohan Maity · Answer

Oh okay let me try this

Rohan Maity · Answer

Even after enabling core library desugaring it still fails with same exception