Qt应用程序从QtCreator启动时在发布模式下启动失败(Qt5widgets.dll错误#c0000005)

Question

我用Qt Creator 4.0.3开发了一个小的Qt应用程序，基于Qt 5.7.0 (MSVC 2013, 32位)。它有一些GUI特性，2个UI表单，并执行一些计算。我在Windows 7 SP1(64位)上工作。

无论如何，它在调试模式下工作良好(从Qt Creator编译和执行)。在发布模式下编译也是可以的，但是当我在发布模式下启动它时，应用程序从一开始就崩溃了，我得到以下错误信息:

Nom d ' samvacimement de problem: APPCRASH
Qt5Widgets.dll
异常代码:c0000005
daccage de l 'exception: 00000000000443f6
版本du system system: 6.1.7601.2.1.0.768.3
参数标识符:1036
信息补充器n°1:8ea0
信息补充器n°2:8ea0c4174e0822e8b28dbc57f24bae2b
信息补充通讯n°3:3b5a
信息补充器n°4:3b5adda433ec4f225b96ef9c334a03

我真的猜不出这个问题是如何解决的，它阻止我跳到部署过程的下一步(顺便说一句，我在双击它时直接执行应用程序时得到同样的错误，即使在使用windeployqt并添加所需的dll…)。

这是我的。pro文件:

QT += xml widgets network
greaterThan(QT_MAJOR_VERSION, 4): QT += printsupport
HEADERS += 
    fenprincipale.h 
    quandldatadomdoc.h 
    historique.h 
    portfoliohistorique.h 
    portfolio.h 
    security.h 
    portfoliomodel.h 
    portfolioitem.h 
    portfoliodelegate.h 
    historicmanager.h 
    dialogvarhisto.h 
    qcustomplot.h 
    fengraphvar.h
SOURCES += 
    fenprincipale.cpp 
    main.cpp 
    quandldatadomdoc.cpp 
    historique.cpp 
    portfoliohistorique.cpp 
    portfolio.cpp 
    security.cpp 
    portfoliomodel.cpp 
    portfolioitem.cpp 
    portfoliodelegate.cpp 
    historicmanager.cpp 
    dialogvarhisto.cpp 
    qcustomplot.cpp 
    fengraphvar.cpp
RESOURCES += 
    resourcesro.qrc
FORMS += 
    dialogvarhisto.ui 
    fengraphvar.ui

编辑:

查看JIT Visual Studio调试器窗口，我得到以下输出:

Callstack:

Qt5Widgets.dll!00000000506843f6()   Unknown
    RiskOffice.exe!000000013f9f3c60()   Unknown
    RiskOffice.exe!000000013f9f16d1()   Unknown
    RiskOffice.exe!000000013f9f7795()   Unknown
    RiskOffice.exe!000000013fa34465()   Unknown
    RiskOffice.exe!000000013fa33dfd()   Unknown
    [External Code] 
--------------------------------------------OUTPUT----------------------
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64binQt5Widgets.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32gdi32.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32user32.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32lpk.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32usp10.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32msvcrt.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64binQt5Gui.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32ole32.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32rpcrt4.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64binQt5Core.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32shell32.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32shlwapi.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32advapi32.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32sechost.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32ws2_32.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32nsi.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32mpr.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32msvcp120.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32msvcr120.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64binQt5Xml.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64binQt5Network.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32dnsapi.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32IPHLPAPI.DLL'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32winnsi.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32crypt32.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32msasn1.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32imm32.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32msctf.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32nvinitx.dll'. Cannot find or open the PDB file.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32cryptbase.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32profapi.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64pluginsplatformsqwindows.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32winmm.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32oleaut32.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32uxtheme.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32dwmapi.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64pluginsbearerqgenericbearer.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32dhcpcsvc.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32dhcpcsvc6.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64pluginsbearerqnativewifibearer.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32wlanapi.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:WindowsSystem32wlanutil.dll'. Symbols loaded.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64pluginsimageformatsqdds.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64pluginsimageformatsqgif.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64pluginsimageformatsqicns.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64pluginsimageformatsqico.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64pluginsimageformatsqjpeg.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64pluginsimageformatsqsvg.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64binQt5Svg.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64pluginsimageformatsqtga.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64pluginsimageformatsqtiff.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64pluginsimageformatsqwbmp.dll'. Module was built without symbols.
'RiskOffice.exe' (Win32): Loaded 'C:Qt5.7msvc2013_64pluginsimageformatsqwebp.dll'. Module was built without symbols.
The thread 0x1edc has exited with code 0 (0x0).
Unhandled exception at 0x00000000506843F6 (Qt5Widgets.dll) in RiskOffice.exe: 0xC0000005: Access violation reading location 0xFFFFFFFFFFFFFFFF.

…这基本上说一些模块(包括Qt5Widgets.dll)是"没有符号构建的"，但我不知道如何解释这个…

Answer 1

好，我刚刚忘记在实例化主窗口时删除未初始化的QAction对象。将它添加到QMenuBar中不会使应用程序在调试模式下崩溃，但确实会使其在发布模式下崩溃!不可思议!