Exception thrown Constructor Injection - AutoFac Dependency Injection?

You are doing absolutely the right thing. Why? You are preventing the system from starting when the application isn't configured correctly.

The last thing you want to happen is that the system actually starts and fails later on. Fail fast! However, make sure that this exception doesn't get lost.

You could make sure the exception gets logged.

The core issue is that you are mixing the composition and execution of your object graph by doing some execution during composition. In the DI style, constructors should be as simple as possible. When your class is asked to perform some meaningful work, such as when the GetConfigurationSettings method is called, that is your signal to begin in earnest.

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