Missing method System.Runtime.InteropServices.Marshal::PtrToStructure<[1]>(intptr) in assembly /usr/lib/mono/4.5/mscorlib.dll, referenced in assembly /home/orca/Downloads/kuriimu/Kontract.dll

Unhandled Exception:
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.MissingMethodException: Method not found: 'System.Runtime.InteropServices.Marshal.PtrToStructure'.
  at Kuriimu.IO.BinaryReaderX.ReadStruct[CFNT] () [0x00000] in <filename unknown>:0
  at Cetera.Font.BCFNT..ctor (System.IO.Stream input) [0x00000] in <filename unknown>:0
  at game_etrian_odyssey_v.Handler..ctor () [0x00000] in <filename unknown>:0
  at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&)
  at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0
  --- End of inner exception stack trace ---
  at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0
  at System.Activator.CreateInstance (System.Type type, Boolean nonPublic) [0x00000] in <filename unknown>:0
  at System.Activator.CreateInstance (System.Type type) [0x00000] in <filename unknown>:0
  at Kuriimu.Kontract.PluginLoader`1[Kuriimu.Kontract.IGameHandler].LoadPlugins (System.String pluginPath, System.String filter) [0x00000] in <filename unknown>:0
  at Kuriimu.Kontract.Tools.LoadGameHandlers (System.String pluginPath, System.Windows.Forms.ToolStripDropDownButton tsb, System.Drawing.Image noGameIcon, System.EventHandler selectedIndexChanged) [0x00000] in <filename unknown>:0
  at Kuriimu.Editor..ctor (System.String[] args) [0x00000] in <filename unknown>:0
  at (wrapper remoting-invoke-with-check) Kuriimu.Editor:.ctor (string[])
  at Kuriimu.Program.Main (System.String[] args) [0x00000] in <filename unknown>:0
[ERROR] FATAL UNHANDLED EXCEPTION: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.MissingMethodException: Method not found: 'System.Runtime.InteropServices.Marshal.PtrToStructure'.
  at Kuriimu.IO.BinaryReaderX.ReadStruct[CFNT] () [0x00000] in <filename unknown>:0
  at Cetera.Font.BCFNT..ctor (System.IO.Stream input) [0x00000] in <filename unknown>:0
  at game_etrian_odyssey_v.Handler..ctor () [0x00000] in <filename unknown>:0
  at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&)
  at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0
  --- End of inner exception stack trace ---
  at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0
  at System.Activator.CreateInstance (System.Type type, Boolean nonPublic) [0x00000] in <filename unknown>:0
  at System.Activator.CreateInstance (System.Type type) [0x00000] in <filename unknown>:0
  at Kuriimu.Kontract.PluginLoader`1[Kuriimu.Kontract.IGameHandler].LoadPlugins (System.String pluginPath, System.String filter) [0x00000] in <filename unknown>:0
  at Kuriimu.Kontract.Tools.LoadGameHandlers (System.String pluginPath, System.Windows.Forms.ToolStripDropDownButton tsb, System.Drawing.Image noGameIcon, System.EventHandler selectedIndexChanged) [0x00000] in <filename unknown>:0
  at Kuriimu.Editor..ctor (System.String[] args) [0x00000] in <filename unknown>:0
  at (wrapper remoting-invoke-with-check) Kuriimu.Editor:.ctor (string[])
  at Kuriimu.Program.Main (System.String[] args) [0x00000] in <filename unknown>:0