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Xamarin iOS WatchKit - Error HE0046 Failed to install the app on the device 'iOS 11.4 - Iphone 8

I am working on a WatchKit App from Xamarin and i am unable to launch my app on simulator device.

I found this Error in CoreSimulator.log :

Error Domain=MIInstallerErrorDomain Code=85 "No WatchKit 1.0 app bundle found for app

Informations :

  • Deployment Target : 4.0
  • Bundle Id and WKCompanionAppBundleIdentifier are OK
  • Target simulator : iPHone 8+ and iWatch Series 3
  • Visual Studio 15.8 (installed on Windows)
  • XCode 9.4.1

For information, if i try to set watchKit extension project as a startup project in VS for MAC it, it doesn't do the thing, i haven't this chois in the drop-down menu...

Please see the attached extract of CoreSimulator.log :

`> Aug 24 09:17:47 jo-mobile com.xamarin.xamarin-launcher[21497] :

installApplication:withOptions:error:: Error
Domain=IXUserPresentableErrorDomain Code=1 "This app could not be
installed at this time." UserInfo={NSLocalizedDescription=This app
could not be installed at this time., NSUnderlyingError=0x7fb2eaf5dd80
{Error Domain=MIInstallerErrorDomain Code=85 "No WatchKit 1.0 app
bundle found for app com.foo.bar.watchkitapp.watchkitextension"
UserInfo={SourceFileLine=164, NSLocalizedDescription=No WatchKit 1.0
app bundle found for app com.foo.bar.watchkitapp.watchkitextension,
FunctionName=-[MIPluginKitPluginBundle watchKitAppBundleWithError:]}}}`

I tried to clean, rebuild, Erase all content of simulator, unload/reload project and so on but nothing helps.

Any help would be appreciated.

Thanks in advance.

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