Dereference of a possibly null reference. Cannot convert null literal to non-nullable reference type. Nullability of reference types in value of type '(string?, string?)' doesn't match target type '(string logPath, string logLevel)'. Converting null literal or possible null value to non-nullable type. Nullability of reference types in value of type '(string?, string?)' doesn't match target type '(string logPath, string logLevel)'. Nullability of reference types in value of type '(string logPath, string? detectedLevel)' doesn't match target type '(string logPath, string logLevel)'. Nullability of reference types in value of type '(string?, string?)' doesn't match target type '(string logPath, string logLevel)'. Cannot convert null literal to non-nullable reference type.