$ mono-test-install Active Mono: /usr/bin/mono You have a working System.Drawing setup Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object at Program.Main () [0x00016] in <b1268a7598c348a1bab9935e43e6394b>:0 [ERROR] FATAL UNHANDLED EXCEPTION: System.NullReferenceException: Object reference not set to an instance of an object at Program.Main () [0x00016] in <b1268a7598c348a1bab9935e43e6394b>: Система: ALT Workstation 9.1 x86_64, текущий сизиф Версия пакета: mono-devel-6.12.0.122-alt1