使用 mkbundle(mono) 编译 Simple Winforms Application 时出现异常

我试过使用mkbundle --deps f.exe -o d.exe 但会引发异常

我收到以下错误

embedding: I:'f.exe
   embedding: C:'PROGRA~2'MONO-2~1.8'lib'mono'4.0'System.dll
   embedding: C:'PROGRA~2'MONO-2~1.8'lib'mono'4.0'mscorlib.dll
   embedding: C:'PROGRA~2'MONO-2~1.8'lib'mono'4.0'Mono.Security.dll
   embedding: C:'PROGRA~2'MONO-2~1.8'lib'mono'4.0'System.Configuration.dll
   embedding: C:'PROGRA~2'MONO-2~1.8'lib'mono'4.0'System.Xml.dll
   embedding: C:'PROGRA~2'MONO-2~1.8'lib'mono'4.0'System.Security.dll
   embedding: C:'PROGRA~2'MONO-2~1.8'lib'mono'4.0'System.Windows.Forms.dll
   embedding: C:'PROGRA~2'MONO-2~1.8'lib'mono'4.0'System.Drawing.dll
   embedding: C:'PROGRA~2'MONO-2~1.8'lib'mono'4.0'Accessibility.dll
   embedding: C:'PROGRA~2'MONO-2~1.8'lib'mono'4.0'Mono.WebBrowser.dll
   embedding: C:'PROGRA~2'MONO-2~1.8'lib'mono'4.0'Mono.Posix.dll
   embedding: C:'PROGRA~2'MONO-2~1.8'lib'mono'4.0'System.Data.dll
   embedding: C:'PROGRA~2'MONO-2~1.8'lib'mono'4.0'Mono.Data.Tds.dll
   embedding: C:'PROGRA~2'MONO-2~1.8'lib'mono'4.0'System.Transactions.dll
   embedding: C:'PROGRA~2'MONO-2~1.8'lib'mono'4.0'System.EnterpriseServices.dll
Compiling:
as -o temp.o temp.s
Unhandled Exception: System.ComponentModel.Win32Exception: ApplicationName='sh',
 CommandLine='-c "as -o temp.o temp.s "', CurrentDirectory=''
  at System.Diagnostics.Process.Start_noshell (System.Diagnostics.ProcessStartIn
fo startInfo, System.Diagnostics.Process process) [0x00000] in <filename unknown
>:0
  at System.Diagnostics.Process.Start_common (System.Diagnostics.ProcessStartInf
o startInfo, System.Diagnostics.Process process) [0x00000] in <filename unknown>
:0
  at System.Diagnostics.Process.Start (System.Diagnostics.ProcessStartInfo start
Info) [0x00000] in <filename unknown>:0
  at MakeBundle.Execute (System.String cmdLine) [0x00000] in <filename unknown>:
0
  at MakeBundle.GenerateBundles (System.Collections.ArrayList files) [0x00000] i
n <filename unknown>:0
  at MakeBundle.Main (System.String[] args) [0x00000] in <filename unknown>:0
[ERROR] FATAL UNHANDLED EXCEPTION: System.ComponentModel.Win32Exception: Applica
tionName='sh', CommandLine='-c "as -o temp.o temp.s "', CurrentDirectory=''
  at System.Diagnostics.Process.Start_noshell (System.Diagnostics.ProcessStartIn
fo startInfo, System.Diagnostics.Process process) [0x00000] in <filename unknown
>:0
  at System.Diagnostics.Process.Start_common (System.Diagnostics.ProcessStartInf
o startInfo, System.Diagnostics.Process process) [0x00000] in <filename unknown>
:0
  at System.Diagnostics.Process.Start (System.Diagnostics.ProcessStartInfo start
Info) [0x00000] in <filename unknown>:0
  at MakeBundle.Execute (System.String cmdLine) [0x00000] in <filename unknown>:
0
  at MakeBundle.GenerateBundles (System.Collections.ArrayList files) [0x00000] i
n <filename unknown>:0
  at MakeBundle.Main (System.String[] args) [0x00000] in <filename unknown>:0

有人可以帮我吗？

EDIT:

当我直接从 Cygwin 的 Windows 使用 mkbundle 时，发生了上述错误，我收到以下错误

'as' command not found

从网上我了解到'as'是一个编译器，我在哪里可以得到它，请帮助我我不是Linux爱好者