Debugging F # in Xamarin Studio 4.0.3 causes an error

Question

I installed Xamarin Studio 4.0.1 on Windows 8 x64 from http://monodevelop.com/Download . When I started Xamarin, it upgraded to 4.0.3. I set the F # bindings. I created a new console project F #. When I run it, it works fine. When I set a breakpoint and run it, I get the following error. Any idea why this is happening?

System.Runtime.InteropServices.COMException (0x80070032): The request is not supported. (Exclusion from HRESULT: 0x80070032) on Microsoft.Samples.Debugging.CorDebug.NativeApi.ICorDebug.CreateProcess (String lpApplicationName, String lpCommandLine, SECURITY_ATTRIBUTES lpProcessAttributes, SECURITY_ATTRIBUTES lpThreadAttributes, Int32, UInt32 bInheritHandles dwCreationFlags, IntPtr lpEnvironment, String lpCurrentDirectory, STARTUPINFO lpStartupInfo, PROCESS_INFORMATION lpProcessInformation, CorDebugCreateProcessFlags debuggingFlags, ICorDebugProcess & amp; ppProcess) in Microsoft.Samples.Debugging.CorDebug.CorDebugger.CreateProcess (String applicationName, String commandLine, SECURITY_FRITUTURFIBUTESBURUTESIBUTESTERIBUTESTERIBUTESTERIBUTESTERIBUTESTERIBUTESTERFLES , PROCESS_INFORMATION & processInformation, CorDebugCreateProcessFlags debuggingFlags) in Microsoft.Samples.Debugging.CorDebug.CorDebugger.CreateProcess (Stri ng applicationName, String commandLine, String currentDirectory, IDictionary`2 environment, Int32 flags) in MonoDevelop.Debugger.Win32.CorDebuggerSession.OnRun (DebuggerStartInfo startInfo) in Mono.Debugging.Client.DebuggerSession. <> c__DisplayClassc.b__a ()

Answer 1

The problem with the Win32 debugger is that we do not support x64 debugging. Try to debug the application in 32 bits and it will work.

We need to implement a remote debugger that also creates a 64-bit debugger so that we can debug a 64-bit application. We use MDbg as a backend.

Also check: http://blogs.msdn.com/b/jmstall/archive/2006/03/08/debugging-cross-platform.aspx