c# - System.Drawing mono エラーのデバッグ

Question

失敗した結果に関するこの回答に従って、次を入れました：mono-test-installtest.cs

using System;
using System.Drawing;

class X { 
    static void Main ()
    {
        Bitmap b = new Bitmap (100, 100);
    }
}

それから走った

mcs -pkg:dotnet test.cs

出力：

test.cs(7,16): 警告 CS0219: 変数 `b' が割り当てられていますが、その値は決して使用されません コンパイルは成功しました - 1 個の警告

そして、結果のexeを次のように実行しました：

mono test.exe

出力：

Unhandled Exception:
System.TypeInitializationException: An exception was thrown by the type initializer for System.Drawing.GDIPlus ---> System.DllNotFoundException: /usr/local/lib/libgdiplus.so
  at (wrapper managed-to-native) System.Drawing.GDIPlus:GdiplusStartup (ulong&,System.Drawing.GdiplusStartupInput&,System.Drawing.GdiplusStartupOutput&)
  at System.Drawing.GDIPlus..cctor () [0x00000] in <filename unknown>:0 
  --- End of inner exception stack trace ---
  at System.Drawing.Bitmap..ctor (Int32 width, Int32 height, PixelFormat format) [0x00000] in <filename unknown>:0 
  at System.Drawing.Bitmap..ctor (Int32 width, Int32 height) [0x00000] in <filename unknown>:0 
  at (wrapper remoting-invoke-with-check) System.Drawing.Bitmap:.ctor (int,int)
  at X.Main () [0x00000] in <filename unknown>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.TypeInitializationException: An exception was thrown by the type initializer for System.Drawing.GDIPlus ---> System.DllNotFoundException: /usr/local/lib/libgdiplus.so
  at (wrapper managed-to-native) System.Drawing.GDIPlus:GdiplusStartup (ulong&,System.Drawing.GdiplusStartupInput&,System.Drawing.GdiplusStartupOutput&)
  at System.Drawing.GDIPlus..cctor () [0x00000] in <filename unknown>:0 
  --- End of inner exception stack trace ---
  at System.Drawing.Bitmap..ctor (Int32 width, Int32 height, PixelFormat format) [0x00000] in <filename unknown>:0 
  at System.Drawing.Bitmap..ctor (Int32 width, Int32 height) [0x00000] in <filename unknown>:0 
  at (wrapper remoting-invoke-with-check) System.Drawing.Bitmap:.ctor (int,int)
  at X.Main () [0x00000] in <filename unknown>:0 

これを無視しても安全ですか、それとも次の行をデバッグする必要がありNotFoundException: /usr/local/lib/libgdiplus.soますか?