To get rid of deprecated nuget packages in your solution follow the procedure below.
In Visual Studio first manage the nuget packages for your project (or solution) by right clicking the project in the solution explorer and choose Manage NuGet Packages…
Then the deprecated packages will show up in the list:
To remove those packages you have to remove them from the project file (or do an uninstall with the nuget package manager). I prefer to do this in the project file. So open the project file and remove the package entry (marked lines in the image below).
Now you have to add the FrameworkReference item to the project file. See the project file below and checkout the marked lines.
Check also this link for a more verbose explanation.
In C#, constructors cannot be declared as async because they are special methods used for object initialization and cannot be awaited. However, you can use an asynchronous factory method or an initialization method to perform asynchronous operations during object creation. Here’s an example:
public class MyClass
// Private constructor to enforce the usage of factory method
public static async Task<MyClass> CreateAsync()
var instance = new MyClass();
private async Task InitializeAsync()
// Perform asynchronous initialization tasks here
await Task.Delay(1000); // Example asynchronous operation
In the above example, the constructor for MyClass is marked as private to enforce the usage of the CreateAsync factory method. The CreateAsync method creates an instance of MyClass, calls the private constructor, and then asynchronously initializes the object by calling the InitializeAsync method. You can perform any necessary asynchronous operations within the InitializeAsync method.
To create an instance of MyClass, you would use the CreateAsync method as follows:
var myObject = await MyClass.CreateAsync();
By using this approach, you can achieve asynchronous behavior during object construction in C#.