Strange error, when use debug mode it's trying to link dlls from release, when in release - from debug

webstylemedia

Hello!

Have a very strange error, when running camera example in qtcreator.

When I use debug mode I get this error:

Running C:\Qt\QtMobility\1.1.0-beta2\examples\camera\debug\camera.exe...
QMediaPluginLoader: Failed to load plugin: "C:/Qt/4.7.0/qt/plugins/mediaservice/dsengine.dll" "The plugin 'C:/Qt/4.7.0/qt/plugins/mediaservice/dsengine.dll' uses incompatible Qt library. Expected build key "Windows mingw debug full-config", got "Windows mingw release full-config""

When I use release mode I get opposite error:

Running C:\Qt\QtMobility\1.1.0-beta2\examples\camera\release\camera.exe...
QMediaPluginLoader: Failed to load plugin: "C:/Qt/4.7.0/qt/plugins/mediaservice/dsengined.dll" "The plugin 'C:/Qt/4.7.0/qt/plugins/mediaservice/dsengined.dll' uses incompatible Qt library. Expected build key "Windows mingw release full-config", got "Windows mingw debug full-config""

I tried several tests, first tried to delete debug files from plugins/mediaservice when used release, and release dlls when used debug - no luck. Tried to rename dsengined to dsengine, and dsengine to dsengined. No luck. The same happens with other plugins - for audio for example - in release mode it's trying to link debug dll etc.

Please help me what I need to do to avoid this wrong linking?

I have Qt 4.7.0 and Qt Mobility 1.1.0-beta2.

Platform Windows Vista.

Thanks.

Dmitry

webstylemedia

Also found that this is happened with all qtmobility examples. What can be wrong? Please help.

Marcelo Barros

Same here. I compiled Qt Mobility 1.1.0-beta2 on Qt 4.7.0 using mingw:

set path to Qt
set path to perl
set path to mingw

@configure -release
mingw32-make
mingw32-make install

configure -debug
mingw32-make
mingw32-make install@

it is possible to see some libs with the trailing "d", so I imagine debug and release versions are available. However, when compiling my application, I had the same error described here.

In my project file, I used:

@win32 {
INCLUDEPATH += C:\QtMobility\include
LIBS += -LC:\QtMobility\lib
}
@

The error is:

QMediaPluginLoader: Failed to load plugin: "C:/QtMobility/plugins/mediaservice/dsengine.dll" "The plugin 'C:/QtMobility/plugins/mediaservice/dsengine.dll' uses incompatible Qt library. Expected build key "Windows mingw debug full-config", got "Windows mingw release full-config""
QMediaPluginLoader: Failed to load plugin: "C:/QtMobility/plugins/mediaservice/qtmedia_audioengine.dll" "The plugin 'C:/QtMobility/plugins/mediaservice/qtmedia_audioengine.dll' uses incompatible Qt library. Expected build key "Windows mingw debug full-config", got "Windows mingw release full-config""

michael.goddard

Are you sure it's not trying to load all the plugins in that directory and just printing a warning for the ones that didn't load? Can you still use the examples ok?

webstylemedia

Yes, guys still dunno how to fix this issue. Maybe someone can help. Looks like qtmobility is very very unstable thing. :-(

Smar

For my environment, I just use manually compiled Qt Mobility against the system Qt, and linking it to the application just by adding -lfoo -Lpath ...

@set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/Modules/")
find_package(QtMobility REQUIRED)@

@
set(QT_MOBILITY_MODULES QtBearer QtContacts QtLocation QtMedia
QtPublishSubscribe QtSensors QtServiceFramework
QtSystemInfo QtVersit
)

#find_path(MOBILITY_INCLUDE_DIR

PATHS

~/Library/Frameworks

/Library/Frameworks

/

/usr/include

/usr/local/include

#)

INCLUDE(FindPackageHandleStandardArgs)
foreach(MOBILITY_MODULE ${QT_MOBILITY_MODULES})
string(TOUPPER ${MOBILITY_MODULE} _upper_mobi_module)
find_library(${_upper_mobi_module}_LIBRARY
NAMES ${MOBILITY_MODULE}
)
MARK_AS_ADVANCED(${_upper_mobi_module}_LIBRARY)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(QtMobility DEFAULT_MSG ${_upper_mobi_module}_LIBRARY)
endforeach()

#FIND_PACKAGE_HANDLE_STANDARD_ARGS(QtMobility DEFAULT_MSG MOBILITY_INCLUDE_DIR)
#MARK_AS_ADVANCED(MOBILITY_INCLUDE_DIR)
@

Your Qt paths are most likely wrong. I suggest using CMake and letting it to handle Qt paths for you if you can’t do it by hand with qmake.

brucewuu

I also meet such problems in desktop on windows 7 x64 , I downloaded the qt components , and try to build the plugins with qmake , mingw32-make , while I run the examples , it said
plugin cannot be loaded for module "C:.bruce.qt.qml.qtcomponent.desktop.components": The plugin 'C:/bruce/qt/qml/qtcomponent/desktop/components/plugin/styleplugin.dll' uses incompatible Qt library. Expected build key "Windows mingw release full-config", got "Windows mingw debug full-config"

and even if I build the plugins with mingw32-make -f Makefile.Release , it still has the same error ,do you guys have similiar problems and anyone know how to solve this , maybe I need to configure qt source code in release mode , I think the plugins should not be so difficult to use .