Debug Assertion Failed in mfc140ud.dll

Question

When I am creating a new dialogue and calling DoModel on it. I am getting the following debug assertion.

The code is

if (m_pWatchDogDialog->WatchDogServer().CurrentUserStatus() == CServerLink::AWAY)
                {
                    CString msg("Requested user is away");
                    m_pWatchDogDialog->WatchDogServer().SendUserMessage(m_UserKey, msg);
                }
            else
            {
                AcceptFile *dlg = new AcceptFile();
                dlg->DoModal(); // error is throwing up here
            }

The error is as shown below

The Assertion is at the debug point as shown in image in dlgcore.cpp file

Answer 1

Assuming that AcceptFile inherits from CDialog, probably you can prevent the debug assertion by the extending the AcceptFile constructor with calling the CDialog constuctor with a lpszTemplateName argument. For example:

class AcceptFile : public CDialog
{
public:
    AcceptFile(LPCTSTR lpszTemplateName, CWnd* pParentWnd = NULL)
        : CDialog(lpszTemplateName, pParentWnd)
    {
        // your code here
    }

// other stuff
};