System.TypeInitializationException: The type initializer for 'Mono.Unix.Native.Stdlib' threw an exception.

08-31 17:02:03: ### DEBUG ##########################
System.TypeInitializationException: The type initializer for 'Mono.Unix.Native.Stdlib' threw an exception. ---> System.DllNotFoundException: /usr/lib/libMonoPosixHelper.so
  at (wrapper managed-to-native) Mono.Unix.Native.Stdlib:GetDefaultSignal ()
  at Mono.Unix.Native.Stdlib..cctor () <0x40984e90 + 0x00013> in <filename unknown>:0
  --- End of inner exception stack trace ---
  at A.P.a (System.String[] ) <0x4097bf70 + 0x00183> in <filename unknown>:0
  at A.P.A (System.String[] ) <0x40954e00 + 0x0001f> in <filename unknown>:0
====================================

解决方案：

ll /usr/lib/libMonoPosixHelper.so   发现文件找不到

上面图是处理之后的

原因：libMonoPosixHelper.so这个文件在 /usr/lib64/libMonoPosixHelper.so 里面

你需要做个链接 

执行命令：ln -s /usr/lib64/libMonoPosixHelper.so /usr/lib/