Windows上的Qt部署错误0xc0000007b

Question

我有一个Qt 5.12的Windows应用程序。我使用的是Qt Creator和Mingw 64位。我已经部署了windeployqt.exe的应用程序。当我启动它时，应用程序需要libgcc_s_seh-1.dll文件。在我将其粘贴到目录中之后，我得到0xc000007b错误。我运行了Dependency Walker，它给出了以下错误：

Error: At least one required implicit or forwarded dependency was not found.
Error: At least one module has an unresolved import due to a missing export function in an implicitly dependent module.
Error: Modules with different CPU types were found.
Error: A circular dependency was detected.
Warning: At least one delay-load dependency module was not found.
Warning: At least one module has an unresolved import due to a missing export function in a delay-load dependent module.

这是我的.pro文件

QT += core gui network

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = Control
TEMPLATE = app

# The following define makes your compiler emit warnings if you use
# any feature of Qt which has been marked as deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
QMAKE_LFLAGS += -static-libgcc


##CONFIG += c++11
##QMAKE_CXXFLAGS += -std=c++0x
SOURCES += \
        main.cpp \
        mainwindow.cpp

HEADERS += \
        mainwindow.h

FORMS += \
        mainwindow.ui

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

有人能帮我吗？非常感谢。

Answer 1

我以前也遇到过类似的问题，但我不太确定这是否是相同的原因，因为我是用MVSC编译的。

在我的例子中，应用程序内部链接到x86依赖文件。我做了download，安装了x64依赖文件，并链接到x64文件。

无论如何，老版本的Dependency Walker在处理64位EXE或DLL时不知道跳过PATH中的32位DLL，所以有些错误并不重要。您可以在此post中找到更多信息。

如果问题仍然存在，请根据此post尽量避免使用静态版本的libgcc。它不是被设计成静态链接的。

...
#QMAKE_LFLAGS += -static-libgcc
...

Answer 2

当编译的应用程序看不到Qt dlls时，我得到了这个错误，所以请检查你的路径。也可能是它找不到其他的gcc dll，比如libwinpthread-1.dll。