Possible null reference return.

Cannot convert null literal to non-nullable reference type.

Possible null reference argument for parameter 'cki' in 'void EscSeqUtils.DecodeEscSeq(ref ConsoleKeyInfo newConsoleKeyInfo, ref ConsoleKey key, ConsoleKeyInfo[] cki, ref ConsoleModifiers mod, out string c1Control, out string code, out string[] values, out string terminator, out bool isMouse, out List<MouseFlags> buttonState, out Point pos, out bool isResponse, Action<MouseFlags, Point>? continuousButtonPressedHandler)'.

Possible null reference assignment.

Converting null literal or possible null value to non-nullable type.

Possible null reference assignment.

Converting null literal or possible null value to non-nullable type.

Dereference of a possibly null reference.

Dereference of a possibly null reference.