Issue while building Xamarin.android

Question

I'm currently building a Xamarin APP, but recently it's totally impossible to buid my app on android. Visual Studio return me this issue :

Severity    Code    Description Project File    Line    Suppression State
Error       MSB4062: The "Xamarin.Build.Download.XamarinBuildAndroidAarRestore" task could not be loaded from the assembly C:\Users\name\.nuget\packages\xamarin.build.download\0.4.9\build\Xamarin.Build.Download.dll.  Confirm that the <UsingTask> declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask.          0   

What i've tried to do :

• Clean and build the android project and the entire project
• Unload and load the android project
• Remove .vs/ folder
• Repair Visual Studio 2019 via Installer (this work fine once)
• Restart Visual Studio / PC

The nugget i've installed :

• Xamarin Forms on core project - Android - iOS (v 4.6.0.847)
• Xamarin Essential on core project - Android - iOS (v 1.5.3.2)
• Xamarin Firebase Auth on core project - Android (v 60.1142.1)
• Xamarin Firebase Core on core project - Android (v 60.1142.1)

Answer 1

Solution:

Install/update Xamarin.Build.Download in your .Android project.