Hi, I have a problem that is very similar to <this...

# koin

[Johan Reitan]

Hi, I have a problem that is very similar to this thread. My multi-module app follows roughly the architecture in the image (taken from this article). My iOS Amper module depends on the Presentation and Bridge modules in order to get all the modules for my initKoin() function, and the Presentation module is exposed to Swift.

I’ve made sure to call initKoin() from the iOS app’s init:

@main
struct iOSApp: App {
	init() {
		KoinKt.doInitKoin()
	}

	var body: some Scene {
		WindowGroup {
			ContentView()
		}
	}
}

I have made a helper KoinComponent to be able to inject my component:

class EditViewModelHelper : KoinComponent {
	val viewModel: EditViewModel by inject()
}

But when I try to inject my component in Swift, IllegalStateException: KoinApplication has not been started is thrown:

struct ContentView: View {
	let viewModel = EditViewModelHelper().viewModel
    // ...
}

Full stacktrace in thread.

I have also tried injecting a simple class with no dependencies to rule out the issue of missing exported binaries from the thread I linked to above.

Any idea what causes this?

[Johan Reitan]

Full stacktrace:

Uncaught Kotlin exception: kotlin.IllegalStateException: KoinApplication has not been started
    at 0   Presentation                        0x106186257        kfun:kotlin.Throwable#<init>(kotlin.String?){} + 119 
    at 1   Presentation                        0x10617f757        kfun:kotlin.Exception#<init>(kotlin.String?){} + 115 
    at 2   Presentation                        0x10617f977        kfun:kotlin.RuntimeException#<init>(kotlin.String?){} + 115 
    at 3   Presentation                        0x10617ff17        kfun:kotlin.IllegalStateException#<init>(kotlin.String?){} + 115 
    at 4   Presentation                        0x1064fe3fb        kfun:org.koin.core.context.MutableGlobalContext#get(){}org.koin.core.Koin + 275 
    at 5   Presentation                        0x106501723        kfun:org.koin.core.context.KoinContext#get(){}org.koin.core.Koin-trampoline + 99 
    at 6   Presentation                        0x1064e5abb        kfun:org.koin.core.component.KoinComponent#getKoin(){}org.koin.core.Koin + 159 
    at 7   Presentation                        0x10650163f        kfun:org.koin.core.component.KoinComponent#getKoin(){}org.koin.core.Koin-trampoline + 99 
    at 8   Presentation                        0x105565757        kfun:presentation.features.edit.EditViewModelHelper.<init>$lambda$0#internal + 607 
    at 9   Presentation                        0x1055658eb        kfun:presentation.features.edit.EditViewModelHelper.$<init>$lambda$0$FUNCTION_REFERENCE$1.invoke#internal + 87 
    at 10  Presentation                        0x1062afca7        kfun:kotlin.Function0#invoke(){}1:0-trampoline + 99 
    at 11  Presentation                        0x106197fbb        kfun:kotlin.native.concurrent.SafePublicationLazyImpl#<get-value>(){}1:0 + 459 
    at 12  Presentation                        0x1062b1c8f        kfun:kotlin.Lazy#<get-value>(){}1:0-trampoline + 99 
    at 13  Presentation                        0x10556549f        kfun:presentation.features.edit.EditViewModelHelper#<get-viewModel>(){}presentation.features.edit.EditViewModel + 195 
    at 14  Presentation                        0x1055793b7        objc2kotlin_kfun:presentation.features.edit.EditViewModelHelper#<get-viewModel>(){}presentation.features.edit.EditViewModel + 159 
    at 15  iosApp.debug.dylib                  0x10059c9cf        $s6iosApp11ContentViewVACycfC + 83 (ContentView.swift:5:40)
    at 16  iosApp.debug.dylib                  0x10059e1ff        $s6iosApp6iOSAppV4bodyQrvgAA11ContentViewVycfU_ + 55 (iOSApp.swift:12:4)
    at 17  SwiftUI                             0x1d19187ff        $s7SwiftUI4MenuV_7contentACyAA4TextVq_GAA18LocalizedStringKeyV_q_yXEtcAFRszrlufcq_yXEfU_Tm + 87 
    at 18  SwiftUICore                         0x1d2a51eef        $s7SwiftUI16ViewBodyAccessorV06updateD02of7changedyx_SbtFTf4nnd_n + 955 
    at 19  SwiftUICore                         0x1d2b37817        $s7SwiftUI10StaticBody33_A4C1D658B3717A3062FEFC91A812D6EBLLV11updateValueyyFyyXEfU_ + 343 
    at 20  SwiftUICore                         0x1d2b37403        $s7SwiftUI10StaticBody33_A4C1D658B3717A3062FEFC91A812D6EBLLV11updateValueyyF + 367 
    at 21  SwiftUICore                         0x1d2bc400f        $s14AttributeGraph0A0VyACyxGqd__c5ValueQyd__RszAA12StatefulRuleRd__lufcADSPyqd__GXEfU_ySv_So11AGAttributeatcyXEfU_ySv_AJtcfu_TA + 27 
    at 22  AttributeGraph                      0x1bdf35f7b        _ZN2AG5Graph11UpdateStack6updateEv + 531 
    at 23  AttributeGraph                      0x1bdf367cb        _ZN2AG5Graph16update_attributeENS_4data3ptrINS_4NodeEEEj + 431 
    at 24  AttributeGraph                      0x1bdf3e437        _ZN2AG5Graph20input_value_ref_slowENS_4data3ptrINS_4NodeEEENS_11AttributeIDEjjPK15AGSwiftMetadataRhl + 715 
    at 25  AttributeGraph                      0x1bdf53f9b        AGGraphGetValue + 231 
    at 26  SwiftUICore                         0x1d2b37b9f        $s7SwiftUI11DynamicBody33_A4C1D658B3717A3062FEFC91A812D6EBLLV11updateValueyyF + 411 
    at 27  SwiftUICore                         0x1d2bc400f        $s14AttributeGraph0A0VyACyxGqd__c5ValueQyd__RszAA12StatefulRuleRd__lufcADSPyqd__GXEfU_ySv_So11AGAttributeatcyXEfU_ySv_AJtcfu_TA + 27 
    at 28  AttributeGraph                      0x1bdf35f7b        _ZN2AG5Graph11UpdateStack6updateEv + 531 
    at 29  AttributeGraph                      0x1bdf367cb        _ZN2AG5Graph16update_attributeENS_4data3ptrINS_4NodeEEEj + 431 
    at 30  AttributeGraph                      0x1bdf3e437        _ZN2AG5Graph20input_value_ref_slowENS_4data3ptrINS_4NodeEEENS_11AttributeIDEjjPK15AGSwiftMetadataRhl + 715 
    at 31  AttributeGraph                      0x1bdf53f9b        AGGraphGetValue + 231 
    at 32  SwiftUICore                         0x1d288949b        $s7SwiftUI20DynamicViewContainer031_3FB6ABB0477B815AB3C89DD5EDC9F0M0LLV11updateValueyyFAA03AnyD0V_Tg5 + 75 
    at 33  SwiftUICore                         0x1d2896d13        $s14AttributeGraph0A0VyACyxGqd__c5ValueQyd__RszAA12StatefulRuleRd__lufcADSPyqd__GXEfU_ySv_So11AGAttributeatcyXEfU_ySv_AJtcfu_7SwiftUI20DynamicViewContainer031_3FB6ABB0477B815AB3C89DD5EDC9F0S0LLVAEVyAK03AnyJ0V_G_ANyAQGTgm5 + 19 
    at 34  AttributeGraph                      0x1bdf35f7b        _ZN2AG5Graph11UpdateStack6updateEv + 531 
    at 35  AttributeGraph                      0x1bdf367cb        _ZN2AG5Graph16update_attributeENS_4data3ptrINS_4NodeEEEj + 431 
    at 36  AttributeGraph                      0x1bdf44067        _ZN2AG8Subgraph6updateEj + 827 
    at 37  SwiftUICore                         0x1d2fc51d7        $s7SwiftUI9ViewGraphC13updateOutputs33_7D9EDEF832940A362646A6E979F296C8LL5asyncySb_tF + 339 
    at 38  SwiftUICore                         0x1d2fbb8a7        $s7SwiftUI16ViewRendererHostPAAE6render8interval17updateDisplayList15targetTimestampySd_SbAA4TimeVSgtFyyXEfU_yyXEfU0_ + 147 
    at 39  SwiftUICore                         0x1d2fbb6bf        $s7SwiftUI16ViewRendererHostPAAE6render8interval17updateDisplayList15targetTimestampySd_SbAA4TimeVSgtFyyXEfU_ + 535 
    at 40  SwiftUICore                         0x1d2fb951b        $s7SwiftUI16ViewRendererHostPAAE6render8interval17updateDisplayList15targetTimestampySd_SbAA4TimeVSgtF + 423 
    at 41  SwiftUI                             0x1d23548bf        $s7SwiftUI14_UIHostingViewC14layoutSubviewsyyF + 583 
    at 42  SwiftUI                             0x1d2354923        $s7SwiftUI14_UIHostingViewC14layoutSubviewsyyFTo + 31 
    at 43  UIKitCore                           0x18601c0c3        -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 2403 
    at 44  QuartzCore                          0x18b06ceaf        _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 431 
    at 45  QuartzCore                          0x18b077c33        _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 123 
    at 46  QuartzCore                          0x18afacc57        _ZN2CA7Context18commit_transactionEPNS_11TransactionEdPd + 463 
    at 47  QuartzCore                          0x18afdb467        _ZN2CA11Transaction6commitEv + 651 
    at 48  UIKitCore                           0x185abb7b3        __34-[UIApplication _firstCommitBlock]_block_invoke_2 + 31 
    at 49  CoreFoundation                      0x18041b0eb        __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 19 
    at 50  CoreFoundation                      0x18041a823        __CFRunLoopDoBlocks + 351 
    at 51  CoreFoundation                      0x1804150c7        __CFRunLoopRun + 811 
    at 52  CoreFoundation                      0x18041495f        CFRunLoopRunSpecific + 535 
    at 53  GraphicsServices                    0x190183b0f        GSEventRunModal + 159 
    at 54  UIKitCore                           0x185aa2b3f        -[UIApplication _run] + 795 
    at 55  UIKitCore                           0x185aa6d37        UIApplicationMain + 123 
    at 56  SwiftUI                             0x1d1e2eab3        $s7SwiftUI17KitRendererCommon33_ACC2C5639A7D76F611E170E831FCA491LLys5NeverOyXlXpFAESpySpys4Int8VGSgGXEfU_ + 163 
    at 57  SwiftUI                             0x1d1e2e7db        $s7SwiftUI6runAppys5NeverOxAA0D0RzlF + 83 
    at 58  SwiftUI                             0x1d1b70c8b        $s7SwiftUI3AppPAAE4mainyyFZ + 147 
    at 59  iosApp.debug.dylib                  0x10059e4b7        $s6iosApp6iOSAppV5$mainyyFZ + 39 
    at 60  iosApp.debug.dylib                  0x10059e563        __debug_main_executable_dylib_entry_point + 11 (iOSApp.swift:5:8)
    at 61  dyld                                0x1002fd40f        0x0 + 4298101775 
    at 62  ???                                 0x100476273        0x0 + 4299645555

[Johan Reitan]

Reported an issue on Github: https://github.com/InsertKoinIO/koin/issues/2022

[Alexandru Caraus]

This most probably means that the helper does not have access to the started koin instance.

[François]

Look at my playground, maybe you have missed something

[Johan Reitan]

Thanks for your pointers! I created a new XCode project and included the Kotlin module using embedAndSignAppleFrameworkForXcode in the Build Phases, and that worked fine! It must have been an issue with how the unofficial Apple Gradle plugin that Amper uses is generating the XCode project.

[arnaud.giuliani]

good 👍