初始化时报错，谢谢我是初学者不知道怎么搞

我的本意是在程序启动时如果有则不创建，没有则，创建demo.mdb数据库 并且插入数据。我把

『 CDaoDatabase db; //数据库
CDaoRecordset RecSet(&db); //记录集

//获取主程序所在路径,存在sPath中
CString sPath;
GetModuleFileName(NULL,sPath.GetBufferSetLength (MAX_PATH+1),MAX_PATH);
// MessageBox(sPath);
sPath.ReleaseBuffer ();
int nPos;
.......

AfxMessageBox("Access文件写入成功！");
}
else
AfxMessageBox("Demo.mdb数据库已经创建！");

}』 是可以编译通过的 不知道怎么解决 谢谢各位
// s5.cpp : Defines the class behaviors for the application.
//
//#include "dao.h"
#include "stdafx.h"
#include "s5.h"

#include "MainFrm.h"
#include "ChildFrm.h"
#include "s5Doc.h"
#include "s5View.h"
#include "Passwd.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CS5App

BEGIN_MESSAGE_MAP(CS5App, CWinApp)
//{{AFX_MSG_MAP(CS5App)
ON_COMMAND(ID_APP_ABOUT, OnAppAbout)
// NOTE - the ClassWizard will add and remove mapping macros here.
// DO NOT EDIT what you see in these blocks of generated code!
//}}AFX_MSG_MAP
// Standard file based document commands
ON_COMMAND(ID_FILE_NEW, CWinApp::OnFileNew)
ON_COMMAND(ID_FILE_OPEN, CWinApp::OnFileOpen)
// Standard print setup command
ON_COMMAND(ID_FILE_PRINT_SETUP, CWinApp::OnFilePrintSetup)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CS5App construction

CS5App::CS5App()
{
// TODO: add construction code here,
// Place all significant initialization in InitInstance
}

/////////////////////////////////////////////////////////////////////////////
// The one and only CS5App object

CS5App theApp;

/////////////////////////////////////////////////////////////////////////////
// CS5App initialization

BOOL CS5App::InitInstance()
{
AfxEnableControlContainer();

// Standard initialization
// If you are not using these features and wish to reduce the size
// of your final executable, you should remove from the following
// the specific initialization routines you do not need.

#ifdef _AFXDLL
Enable3dControls(); // Call this when using MFC in a shared DLL
#else
Enable3dControlsStatic(); // Call this when linking to MFC statically
#endif
/*
CPasswd pp;
if (pp.DoModal()==IDOK)
{
if (pp.m_passwd!=12345)
{
MessageBox(NULL,"passwd is error!","错误",MB_OK|MB_ICONERROR);
return false;

}
}
else
return false;

*/

CDaoDatabase db; //数据库
CDaoRecordset RecSet(&db); //记录集

//获取主程序所在路径,存在sPath中
CString sPath;
GetModuleFileName(NULL,sPath.GetBufferSetLength (MAX_PATH+1),MAX_PATH);
// MessageBox(sPath);
sPath.ReleaseBuffer ();
int nPos;
nPos=sPath.ReverseFind ('\\');
sPath=sPath.Left (nPos);
//MessageBox(sPath);

//默认创建数据名：Demo.mdb，内部表名：DemoTable，表内有二个字段：姓名、年龄
CString lpszFile = sPath + "\\Demo.mdb";

CFileFind fFind;
BOOL bSuccess;
bSuccess=fFind.FindFile(lpszFile);

fFind.Close ();
//是否已有创建好的Demo.mdb文件，没有则创建它
if(!bSuccess)
{
db.Create(lpszFile);

CString SqlCmd = "CREATE TABLE DemoTable(Name VARCHAR(20),Age VARCHAR(3));";
db.Execute(SqlCmd);

//打开已创建的数据表
RecSet.Open(AFX_DAO_USE_DEFAULT_TYPE,
"SELECT * FROM DemoTable", 0);
//加入第一个记录，用SQL语句
db.Execute("INSERT INTO DemoTable (Name,Age) VALUES ('cc',26)");

//加入第二个记录，用DAO涵数
RecSet.AddNew();
RecSet.SetFieldValue("Name","bb");
RecSet.SetFieldValue("Age","21");
RecSet.Update();

//加入第三个记录，用DAO涵数
RecSet.AddNew();
RecSet.SetFieldValue("Name","aa");
RecSet.SetFieldValue("Age","27");
RecSet.Update();

//关闭记录集及库
RecSet.Close();
db.Close();

AfxMessageBox("Access文件写入成功！");
}
else
AfxMessageBox("Demo.mdb数据库已经创建！");

}

// Change the registry key under which our settings are stored.
// TODO: You should modify this string to be something appropriate
// such as the name of your company or organization.
SetRegistryKey(_T("Local AppWizard-Generated Applications"));

LoadStdProfileSettings(); // Load standard INI file options (including MRU)

// Register the application's document templates. Document templates
// serve as the connection between documents, frame windows and views.

CMultiDocTemplate* pDocTemplate;
pDocTemplate = new CMultiDocTemplate(
IDR_S5TYPE,
RUNTIME_CLASS(CS5Doc),
RUNTIME_CLASS(CChildFrame), // custom MDI child frame
RUNTIME_CLASS(CS5View));
AddDocTemplate(pDocTemplate);

// create main MDI Frame window
CMainFrame* pMainFrame = new CMainFrame;
if (!pMainFrame->LoadFrame(IDR_MAINFRAME))
return FALSE;
m_pMainWnd = pMainFrame;

// Parse command line for standard shell commands, DDE, file open
CCommandLineInfo cmdInfo;
ParseCommandLine(cmdInfo);

// Dispatch commands specified on the command line
if (!ProcessShellCommand(cmdInfo))
return FALSE;

// The main window has been initialized, so show and update it.
pMainFrame->ShowWindow(m_nCmdShow);
pMainFrame->UpdateWindow();

return TRUE;
}


/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
CAboutDlg();

// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA

// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL

// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
// No message handlers
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

// App command to run the dialog
void CS5App::OnAppAbout()
{
CAboutDlg aboutDlg;
aboutDlg.DoModal();
}

/////////////////////////////////////////////////////////////////////////////
// CS5App message handlers