failed to create empty document 怎么解决

Question

程序运行后提示failed to create empty document错误

在这个函数里

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CFrameWndEx::OnCreate(lpCreateStruct) == -1)
		return -1;

这个地方出返回False

	// create docking windows
	if (!CreateDockingWindows())
	{
		TRACE0("Failed to create docking windows\n");
		return -1;
	}

在

BOOL CMainFrame::CreateDockingWindows()
{
	BOOL bNameValid;

	// Create class view
	CString strClassView;
	bNameValid = strClassView.LoadString(IDS_CLASS_VIEW);
	ASSERT(bNameValid);
	if (!m_wndClassView.Create(strClassView, this, CRect(0, 0, 200, 200),TRUE, 
		ID_VIEW_CLASSVIEW,WS_CHILD|WS_VISIBLE|WS_CLIPSIBLINGS|WS_CLIPCHILDREN|
		CBRS_LEFT | CBRS_FLOAT_MULTI ))
	{
		TRACE0("Failed to create Class View window\n");
		return FALSE; // failed to create
	//创建内存窗口
	CString strMemWnd;
	bNameValid = strMemWnd.LoadString(IDS_MEM_WND);
	ASSERT(bNameValid);
	if (!m_wndMemWatch.Create(strMemWnd, this, CRect(0, 0, 200, 200), TRUE, ID_VIEW_MEMVIEW, WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | CBRS_LEFT | CBRS_FLOAT_MULTI ))
	{
		TRACE0("Failed to create Properties window\n");
		return FALSE; // failed to create
	}

	//创建变量窗口
	CString strVarWnd;
	bNameValid = strVarWnd.LoadString(IDS_VARVIEW);
	ASSERT(bNameValid);
	//此处的Create返回了0 
	if (!m_wndVarWatch.Create(strVarWnd, this, CRect(0, 0, 200, 200), TRUE, ID_VIEW_VARVIEW, WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | CBRS_LEFT | CBRS_FLOAT_MULTI ))
	{
		TRACE0("Failed to create Properties window\n");
		return FALSE; // failed to create
	}

这是什么问题造成的呢？