AL0101 - Activator.CreateInstance is not AOT-safe

Activator.CreateInstance uses reflection for instantiation

Source: Al0101AvoidActivatorCreateInstanceAnalyzer.cs

Description

Activator.CreateInstance() relies on reflection to create instances, which is not compatible with Native AOT trimming. Use direct construction or factory patterns.

Bad Code

var service = Activator.CreateInstance(typeof(OrderService));

Good Code

var service = new OrderService();
// Or use DI: serviceProvider.GetRequiredService<OrderService>()

Properties

• Category: AOT Testing
• Severity: Warning
• Enabled by default: True
• Code fix available: False

Configuration

dotnet_diagnostic.AL0101.severity = warning