```isMainThread: true
Function doesn't have or inh...
# multiplatformb
BollywoodVillain
11/25/2020, 12:54 PM Copy code
isMainThread: true
Function doesn't have or inherit @Throws annotation and thus exception isn't propagated from Kotlin to Objective-C/Swift as NSError.
It is considered unexpected and unhandled instead. Program will be terminated.
Uncaught Kotlin exception: kotlin.native.concurrent.InvalidMutabilityException: mutation attempt of frozen com.berlin.kmm_demo.shared.ApiService@2a37878
at 0 shared 0x0000000100c192dd kfun:kotlin.Throwable#<init>(kotlin.String?){} + 93 (/Users/teamcity/buildAgent/work/cae0e6559deed4c4/runtime/src/main/kotlin/kotlin/Throwable.kt:23:37)
at 1 shared 0x0000000100c121cb kfun:kotlin.Exception#<init>(kotlin.String?){} + 91 (/Users/teamcity/buildAgent/work/cae0e6559deed4c4/runtime/src/main/kotlin/kotlin/Exceptions.kt:23:44)
at 2 shared 0x0000000100c1238b kfun:kotlin.RuntimeException#<init>(kotlin.String?){} + 91 (/Users/teamcity/buildAgent/work/cae0e6559deed4c4/runtime/src/main/kotlin/kotlin/Exceptions.kt:34:44)
at 3 shared 0x0000000100c4793b kfun:kotlin.native.concurrent.InvalidMutabilityException#<init>(kotlin.String){} + 91 (/Users/teamcity/buildAgent/work/cae0e6559deed4c4/runtime/src/main/kotlin/kotlin/native/concurrent/Freezing.kt:22:60)
at 4 shared 0x0000000100c491f2 ThrowInvalidMutabilityException + 690 (/Users/teamcity/buildAgent/work/cae0e6559deed4c4/runtime/src/main/kotlin/kotlin/native/concurrent/Internal.kt:92:11)
at 5 shared 0x0000000100d4136c MutationCheck + 108
at 6 shared 0x0000000100bb7ce7 kfun:com.berlin.kmm_demo.shared.ApiService#<init>(){} + 455
at 7 shared 0x0000000100bbc743 objc2kotlin + 163
at 8 iosApp 0x0000000100ae655f $sSo16SharedApiServiceCABycfC + 31
at 9 iosApp 0x0000000100ae6467 $s6iosApp12getLocationsyyF + 39 (/Users/skhawase/skunkworks/KMM_Demo/iosApp/iosApp/ContentView.swift:13:1)
at 10 iosApp 0x0000000100ae6eaa $s6iosApp11ContentViewV4bodyQrvgyycfU_ + 442 (/Users/skhawase/skunkworks/KMM_Demo/iosApp/iosApp/ContentView.swift:20:9)
at 11 SwiftUI 0x00007fff55f13d0c $sIeg_ytIegr_TR + 12
at 12 SwiftUI 0x00007fff55e22b01 $sIeg_ytIegr_TRTA + 17
at 13 SwiftUI 0x00007fff55f13d2c $sytIegr_Ieg_TR + 12
at 14 SwiftUI 0x00007fff55f13d0c $sIeg_ytIegr_TR + 12
at 15 SwiftUI 0x00007fff55e22b01 $sIeg_ytIegr_TRTA + 17
at 16 SwiftUI 0x00007fff55e22c09 $sIeg_ytIegr_TRTA.8 + 9
at 17 SwiftUI 0x00007fff5636e239 $s7SwiftUI16ViewRendererHostPAAE6render8interval17updateDisplayListySd_SbtFyyXEfU_ + 1657
at 18 SwiftUI 0x00007fff5636d2f7 $s7SwiftUI16ViewRendererHostPAAE6render8interval17updateDisplayListySd_SbtF + 343
at 19 SwiftUI 0x00007fff564d4e41 $s7SwiftUI14_UIHostingViewC14layoutSubviewsyyF + 241
at 20 SwiftUI 0x00007fff564d4e65 $s7SwiftUI14_UIHostingViewC14layoutSubviewsyyFTo + 21
at 21 UIKitCore 0x00007fff24bcd686 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 2874
at 22 QuartzCore 0x00007fff27a5ae67 -[CALayer layoutSublayers] + 258
at 23 QuartzCore 0x00007fff27a61319 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 575
at 24 QuartzCore 0x00007fff27a6d071 _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 65
at 25 QuartzCore 0x00007fff279ad158 _ZN2CA7Context18commit_transactionEPNS_11TransactionEdPd + 496
at 26 QuartzCore 0x00007fff279e3ef3 _ZN2CA11Transaction6commitEv + 783
at 27 UIKitCore 0x00007fff2468ab96 __34-[UIApplication _firstCommitBlock]_block_invoke_2 + 81
at 28 CoreFoundation 0x00007fff203a85db __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12
at 29 CoreFoundation 0x00007fff203a79ef __CFRunLoopDoBlocks + 434
Process finished with exit code 0m
Maurice Jouvet
11/27/2020, 8:28 AMHey what is the method that you call from iOS? Just the header of the method.
b
BollywoodVillain
12/07/2020, 12:05 PMI fixed the issue by moving the Json formatter inside the
KotlinXSerializer