Xamarin android app throws ResourceNotFoundException

Since 1 week I discovered Xamarin framework, and my job is to make Android app work. iOS app has been already launched before.

I had to deal first with some NuGet Packages dependencies, but now the only exception I get is :

06-26 15:01:40.719 E/mono-rt (20038): [ERROR] FATAL UNHANDLED EXCEPTION: Android.Content.Res.Resources+NotFoundException: Resource ID #0x0
06-26 15:01:40.719 E/mono-rt (20038):   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /Users/builder/data/lanes/2923/52635947/source/mono/external/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:143 
06-26 15:01:40.719 E/mono-rt (20038):   at Java.Interop.JniEnvironment+InstanceMethods.CallNonvirtualVoidMethod (JniObjectReference instance, JniObjectReference type, Java.Interop.JniMethodInfo method, Java.Interop.JniArgumentValue* args) [0x000a7] in /Users/builder/data/lanes/3340/4e275588/source/Java.Interop/src/Java.Interop/Java.Interop/JniEnvironment.g.cs:12083 
06-26 15:01:40.719 E/mono-rt (20038):   at Android.Runtime.JNIEnv.CallNonvirtualVoidMethod (IntPtr jobject, IntPtr jclass, IntPtr jmethod, Android.Runtime.JValue* parms) [0x00000] in /Users/builder/data/lanes/3340/4e275588/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.g.cs:444 
06-26 15:01:40.719 E/mono-rt (20038):   at Android.Runtime.JNIEnv.FinishCreateInstance (IntPtr instance, IntPtr jclass, IntPtr constructorId, Android.Runtime.JValue* constructorParameters) [0x0000b] in /Users/builder/data/lanes/3340/4e275588/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.cs:339 
06-26 15:01:40.719 E/mono-rt (20038):   at Android.Support.V4.App.ActionBarDrawerToggle..ctor (Android.App.Activity activity, Android.Support.V4.Widget.DrawerLayout drawerLayout, Int32 drawerImageRes, Int32 openDrawerContentDescRes, Int32 closeDrawerContentDescRes) [0x00124] in <filename unknown>:0 
06-26 15:01:40.719 E/mono-rt (20038):   at Xamarin.Forms.Platform.Android.Platform.GetNewMasterDetailToggle () [0x00030] in <filename unknown>:0 
06-26 15:01:40.719 E/mono-rt (20038):   at Xamarin.Forms.Platform.Android.Platform.UpdateMasterDetailToggle (Boolean update) [0x00075] in <filename unknown>:0 
06-26 15:01:40.719 E/mono-rt (20038):   at Xamarin.Forms.Platform.Android.Platform.UpdateActionBar () [0x000a6] in <filename unknown>:0 
06-26 15:01:40.719 E/mono-rt (20038):   at Xamarin.Forms.Platform.Android.Platform.SetPage (Xamarin.Forms.Page newRoot) [0x000bd] in <filename unknown>:0 
06-26 15:01:40.719 E/mono-rt (20038):   at Xamarin.Forms.Platform.Android.FormsApplicationActivity.InternalSetPage (Xamarin.Forms.Page page) [0x000b7] in <filename unknown>:0 
06-26 15:01:40.719 E/mono-rt (20038):   at Xamarin.Forms.Platform.Android.FormsApplicationActivity.SetMainPage () [0x0000c] in <filename unknown>:0 
06-26 15:01:40.719 E/mono-rt (20038):   at Xamarin.Forms.Platform.Android.FormsApplicationActivity.LoadApplication (Xamarin.Forms.Application application) [0x0002d] in <filename unknown>:0 
06-26 15:01:40.719 E/mono-rt (20038):   at savtime.Droid.MainActivity.OnCreate (Android.OS.Bundle bundle) [0x0001e] in D:sourcessavtime-mobileDroidMainActivity.cs:27 
06-26 15:01:40.719 E/mono-rt (20038):   at Android.App.Activity.n_OnCreate_Landroid_os_Bundle_ (IntPtr jnienv, IntPtr native__this, IntPtr native_savedInstanceState) [0x00011] in /Users/builder/data/lanes/3340/4e275588/source/monodroid/src/Mono.Android/platforms/android-23/src/generated/Android.App.Activity.cs:2426 
06-26 15:01:40.719 E/mono-rt (20038):   at (wrapper dynamic-method) System.Object:72e9ca78-aec6-45d3-82e8-45b117f59475 (intptr,intptr,intptr)
06-26 15:01:40.719 E/mono-rt (20038):   --- End of managed exception stack trace ---
06-26 15:01:40.719 E/mono-rt (20038): android.content.res.Resources$NotFoundException: Resource ID #0x0
06-26 15:01:40.719 E/mono-rt (20038):   at android.content.res.Resources.getValue(Resources.java:1243)
06-26 15:01:40.719 E/mono-rt (20038):   at android.content.res.Resources.getDrawable(Resources.java:766)
06-26 15:01:40.719 E/mono-rt (20038):   at android.content.Context.getDrawable(Context.java:402)
06-26 15:01:40.719 E/mono-rt (20038):   at android.support.v4.content.ContextCompatApi21.getDrawable(ContextCompatApi21.java:26)
06-26 15:01:40.719 E/mono-rt (20038):   at android.support.v4.content.ContextCompat.getDrawable(ContextCompat.java:321)
06-26 15:01:40.719 E/mono-rt (20038):   at android.support.v4.app.ActionBarDrawerToggle.<init>(ActionBarDrawerToggle.java:277)
06-26 15:01:40.719 E/mono-rt (20038):   at android.support.v4.app.ActionBarDrawerToggle.<init>(ActionBarDrawerToggle.java:229)
06-26 15:01:40.719 E/mono-rt (20038):   at md5daa929973e91d615883be6545c9acbac.MainActivity.n_onCreate(Native Method)
06-26 15:01:40.719 E/mono-rt (20038):   at md5daa929973e91d615883be6545c9acbac.MainActivity.onCreate(MainActivity.java:29)
06-26 15:01:40.719 E/mono-rt (20038):   at android.app.Activity.performCreate(Activity.java:5975)
06-26 15:01:40.719 E/mono-rt (20038):   at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
06-26 15:01:40.719 E/mono-rt (20038):   at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2269)
06-26 15:01:40.719 E/mono-rt (20038):   at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
06-26 15:01:40.719 E/mono-rt (20038):   at android.app.ActivityThread.access$800(ActivityThread.java:147)
06-26 15:01:40.719 E/mono-rt (20038):   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1281)
06-26 15:01:40.719 E/mono-rt (20038):   at android.os

I saw many posts here and it seems to be an icon problem, but i've checked all resource definitions in the project, resource names, and everything seems to be fine.

Is it possible that this problem is caused by bad References (Like Xamarin Forms, or Iconize) ? Or this can be only because of missing resources ?

I've already clean my solution updated or downgraded my packages but nothing work..

I must also indicate that I use F# instead of C# to develop. And my views are made with XAML.