Runtime Error

[zawal]

Guys I need your help!


I'm using - qt-sdk-win-opensource-2009.01.1.exe

I installed the qwt-5.2.0 in my opinion correctly, I see the QWT widget in Desiner and I can run the examples but...


I added that to my *.pro file.
INCLUDEPATH+= C:\qwt-5.2.0\include
LIBS += -lqwt

When I added the QwtPlot to the from that I have built, the whole application crashes...
I recieve a following error:

Microsoft Visual C++ Runtime Libary
Runtime Error !

This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information.

[Uwe]

DEFINES += QWT_DLL

Uwe

[zawal]

did not help. Still recieving this same error...

[wysota]

Maybe there is problem with the code of your application? Can we see the code?

[zawal]

I figured out that one include was commented. Now I see a different error

collect2: ld returned 1 exit status

when I try to compile the app in Qt command line I get this:

c:\Qt\2009.01\mingw\bin\..\lib\gcc\mingw32\3.4.5\. .\..\..\..\mingw32\bin\ld.exe:
cannot find -lqwt
collect2: ld returned 1 exit status
mingw32-make[1]: *** [debug\network.exe] Error 1
mingw32-make[1]: Leaving directory `C:/Qt/2009.01/qt/network'
mingw32-make: *** [debug-all] Error 2


because my app is to big I uploaded here.

http://www.sendspace.com/file/xahm22

[Uwe]

cannot find -lqwt

This is an error message from the linker ( neither a runtime nor a compiler error ). The linker tells you, that it can't find the qwt library. You need to add the path to the library in your LIBS statement ( something like "LIBS += -L/where/it/is -lqwt".

Uwe

[zawal]

this error message appears because of

LIBS += -lqwt

I changed my *.pro file to

INCLUDEPATH += C:\qwt-5.2.0\src
LIBS += C:\qwt-5.2.0\lib\qwt5.dll
DEFINES += QWT_DLL

and still getting error about Runtime...

[wysota]

But did the compilation succeed or not?

What happens if you copy the qwt5.dll to the folder containing your application?

[zawal]

looks like the compilation succeeded

C:\Qt\2009.01\qt\network>make
mingw32-make -f Makefile.Debug all
mingw32-make[1]: Entering directory `C:/Qt/2009.01/qt/network'
mingw32-make[1]: Nothing to be done for `all'.
mingw32-make[1]: Leaving directory `C:/Qt/2009.01/qt/network'
mingw32-make -f Makefile.Release all
mingw32-make[1]: Entering directory `C:/Qt/2009.01/qt/network'
mingw32-make[1]: Nothing to be done for `all'.
mingw32-make[1]: Leaving directory `C:/Qt/2009.01/qt/network'

but still cannot run the app.

[wysota]

Did you copy the dll before running the program?

By the way, placing your projects alongside Qt's source code might not be the best idea, especially if one of Qt's subdirectories is called "network" as well.

[zawal]

Didn't know that the Qt has a subdir called "network"...
Despite of that I decided to keep my folder as it is and throubleshoot my issue.
I copied the data for examples.pri to my *.pro file (I set only my qwt root dir) and... it works right now.
Weird...
Thank you all guys for help, I really appreciate that!