Hello everyone;
First of all, I tried all the solution foudn in this forum and internet before posting.
My dev platform: Win 7 Pro - 64bits / Qt5.1.1 / msvc2012
My deployement platform: Win 7 Pro - 64bits / Touch screen
When deploying on the production environment, and including all dlls and platform folder
(QT5Core.dll,..., qwt.dll, msvcp110.dll, msvcr110.dll, icu*.dll, libEGL.dll, libGLEv2.dll in the same folder as the executable)
(platforms/qwindows.dll, platforms/qminimal.dll)
But when launching, I get the error
Some things to note:This application failed to start because it could not find or lload the Qt platform plugin "windows"
Reinstalling the application may fix this problem
- This message doesn't come in a message box, but straight in a terminal (meaning if double click the exe, a console editor opens and closes right away)
- The message doesn't have a line "There are no available platforms" (like in others similar issues on the Internet)
- I can launch a small Qt gui application without this error.
- I can launch a small Qwt gui application without this error.
What I did is totally start over the Qt installation, 2 times:
- Once with compiling myself (configure -developer-build -opensource -opengl desktop -nomake examples -nomake tests)
- Once with the installer (this time without openGL)
After compiling my project and qwt with the newly installed, I still couldn't manage to make my application work on the production computer (although it works perfectly on the dev computer)
I looked at Dependency Walker, and I'm now installing a Virtual Machine to have a clean deployement environment;
I also tried to copy the entire Qt5 root folder on the deployement environment and setting the %PATH% env variable to the Qt5 lib, plugins and bin folder.
I really am out of ideas, and I thank you for having read this and trying to help me.
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