QT platform plugin “windows”

Question

So I am working on my Diploma Thesis, and so far everything went fine.

So this week I installed Win8.1 on my PC and installed QT, implemented some things and wanted to send the release version of my program to my company. I compiled the hole thing, copied it to my release folder and i got an error.

"This application failed to start because it could not find or load the Qt platform plugin "windows"."

I googled and found out that I have add a folder named "platforms". Said and done. Same error. I also tried to copy the hole plugins folder to my release folder. Same error. I really need help because my boss isn't happy about giving in work too late.

I hope someone can help me.

Answer 1

Do you also have "qminimal.dll" placed in your platforms directory?

Edit: Sorry, "qminimal.dll" was not displayed in my previous post.

Answer 2

I found the Problem!

Previously i used the dll's from my old QT installation. I just copied the ones from the new Installtion into a folder and the exe. I don't even need the qwindow.dll now. BUT! I works now... :)

Is there a way, that I create my own DLL, just for my Application?

But still thanks for your help!