cannot find -lqtnribbon3 error: ld returned 1 exit

I try to install qtitanribbon3.2 trial version in win7(32bit).But some error happens as follows in the below pictures. Could someone tell me why? I installed QT5.2.

qtnribbon3.dll (and libqtnribbon3.a) file should be in QTITAN_PATH/bin folder. Other suggestion is to check that you are using right build - for your environment it should be - QtitanRibbon3.2.0_mingw_demo

qtnribbon3.dll (and libqtnribbon3.a) file are in QTITAN_PATH/bin folder as pictures show.
And I'm sure I installed QtitanRibbon3.2.0_mingw_demo. The third picture shows the file.

Who can tell me the reason?

I also tried to install QtitanRibbon3.2.0_linux_demo in ubuntu12.04(32bit). I encountered the same problem. I installed QtitanRibbon in /home/alpha/Qt5.2.0/QtitanRibbon. Thare are libqtnribbon.so, libqtnribbon.so.3, libqtnribbon.so.3.2 and libqtnribbon.so.3.2.0 in /home/alpha/Qt5.2.0/QtitanRibbon/bin.
But the same question disappeared. Why?

And is it all the docs?
www.devmachines.com/productdocs/ribbon/index.html
I cannot open "Installation and First Steps with QtitanRibbon" .
Is there other documentation about QtitanRibbon3.2.

Ok, please do the following:

1. Install QtitanRibbon mingw project to the <QtitanRibbon folder>. In my case it was - c:\projects\bugs\qtitanribbon_mingw3.2\qtitanribbon.pro.
2. Run QtCreator


3. Open <QtitanRibbon folder>/qtitanribbon.pro. QtCreator will allow you to configure the project. See pic1.png.
   
   
4. 
   After configuring you will see some errors (such as Cannot read /src/shared/qtitanribbon.pri: No such file or directory). See pic2.png. It is normal.
   
   
   
   


5. Switch to the Release mode. Demo build does not contain debug libraries so it is necessarily. See pic3.png.
   
   
   
   
6. Open Project tab at left of view and scroll down to the Build Environment. Click Details and add QTITANDIR variable to the environment. In my case it was QTITANDIR=c:\projects\bugs\qtitanribbon_mingw3.2\. See pic4.png.
   
   
   
   
7. Run qmake from menu. See pic5.png.
   
   
   
   
8. If all is Ok, qmake will be completed without any errors. See pic6.png.
   
   
   
   
9. Run Build All from menu. See pic7.png.
   
   
   
   
10. If all is Ok the build will be completed and you can start your first app with Ribbon bar in Qt. See pic8.png.
    
    
    
    

Please check this way and let me know the results.

I tried in win7 two times, strictly step by step, by your instructions. From Step1 to Step9, all is OK. But when I start a new app, the same error appeared. I tried again as follow:
First, I start Qtcreator, and open the qtitanribbon.pro by Step1, Step2,...,Step9. Eveything is all right. After running qmake(Step7), No errors. And after running Build All, No errors. Then, I pressed Ctrl+R, and the "Qtitan Ribbon Backstage Sample" window appeared. See pic110.jpg



Second, I created a Qt Widgets Application in QtCreator. I added "include(C:/Qt/QtitanRibbon/src/shared/qtitanribbon.pri)" in the .pro file. Then, I run qmake from the menu, and run Build All from the menu. I pressed Ctrl+R, and the platform and qtitanribbon file appeared in the new app project at left of view. So far, No errors.

Third, I added "include <QtitanRibbon.h>" in main.cpp. The the same error appeared again. .
Then I added QTITANDIR variable(QTITANDIR=C:\Qt\QtitanRibbon\) to the environment(Step6) in this project. Run qmake, No errors. Run Build All, No errors. Then, Ctrl+R, a new error appeared:This application failedto start because it could not find or load the Qt platform plugin "windows". See pic111.jpg



Then, I pressed ENTER, the following error appeared. See pic112.jpg.