Qt Platform Plugin Windows

Qt 5.1.1: Application failed to start because platform plugin “windows” is missing. Edit: Some people started to mark my question as a duplicate. Do not forget that many similar questions existed when I asked this one (see e.g. The list below). However, none of these answers solved my problem. With Qt, you can reach all your target platforms – desktop & embedded – with one technology and one codebase, minimizing your time-to-market and maintenance burden. Qt is available under a dual-licensing model — you choose what’s right for your needs.

Hello Patricia, I request you to refer the following article: Reinstalling Windows 10 after upgrade Disclaimer: Using Third Party Software, including hardware drivers can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the use of Third Party Software can be solved. Using Third Party Software is at your own risk. I hope this helps you. If you have any further queries, feel free to contact us.

We will be happy to help you.

As the title suggests, I am having issues deploying an application built with Qt 5.3. The install procedure that worked with 5.1 does not work anymore. I followed 'this': guide which led me here. I literally have the entirety of my Qt distribution in the deployment directory on my test machine (free of any Qt installations). This means I have all dlls from./bin, everything from plugins, and everything from qml. The deployment folder screenshot can be found 'here'. Additional details: I'm using Qt 5.3 with MS VS2013 x64 with OpenGL all running on Win 7 x64 on my dev machine.

Hit f2(to spawn as a zombie) and play a round on Town and win.

The deployment machine is also Win 7 x64. Don't worry I wrote another 'blog post'::-) So, a small bare-bones works fine, but your real app does not. Try turn on plugin loading trace: (quoting my post): in the Projects mode page, at the bottom, add the environment variable QT_DEBUG_PLUGINS by clicking Details in Build Environment. Set the value to 1.

Then Run your project again, and look in Application Output window, you’ll see lines like “QFactoryLoader::QFactoryLoader() checking.” Also, are you doing any voodoo before QApplication app(argc, argv); in main.cpp? QT_DEBUG_PLUGINS=1, yeah I also seen that it's not working on the command line (only in QtCreator, which is kind of pointless. Been meaning to check why, if I find why I'll update my blog post). LibEGL.dll, correct, not needed.

Anyway, the tool that could help 'ListDLLs': Launch it from cmd line and add your.exe file name as argument (you only a few of the first chars). Then install it on the deployment machine as well, and run it while your app hangs on that error box ('could not find or load the Qt platform plugin'). Now compare them. EDIT: also 'Dependency Walker': is a good tool, install on both machines, do File Open your.exe, then Profile, Start Profiling.

Qt 5.1.1: Application failed to start because platform plugin “windows” is missing. Edit: Some people started to mark my question as a duplicate. Do not forget that many similar questions existed when I asked this one (see e.g. The list below). However, none of these answers solved my problem. With Qt, you can reach all your target platforms – desktop & embedded – with one technology and one codebase, minimizing your time-to-market and maintenance burden. Qt is available under a dual-licensing model — you choose what’s right for your needs.

Hello Patricia, I request you to refer the following article: Reinstalling Windows 10 after upgrade Disclaimer: Using Third Party Software, including hardware drivers can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the use of Third Party Software can be solved. Using Third Party Software is at your own risk. I hope this helps you. If you have any further queries, feel free to contact us.

We will be happy to help you.

As the title suggests, I am having issues deploying an application built with Qt 5.3. The install procedure that worked with 5.1 does not work anymore. I followed 'this': guide which led me here. I literally have the entirety of my Qt distribution in the deployment directory on my test machine (free of any Qt installations). This means I have all dlls from./bin, everything from plugins, and everything from qml. The deployment folder screenshot can be found 'here'. Additional details: I'm using Qt 5.3 with MS VS2013 x64 with OpenGL all running on Win 7 x64 on my dev machine.

Hit f2(to spawn as a zombie) and play a round on Town and win.

The deployment machine is also Win 7 x64. Don't worry I wrote another 'blog post'::-) So, a small bare-bones works fine, but your real app does not. Try turn on plugin loading trace: (quoting my post): in the Projects mode page, at the bottom, add the environment variable QT_DEBUG_PLUGINS by clicking Details in Build Environment. Set the value to 1.

Then Run your project again, and look in Application Output window, you’ll see lines like “QFactoryLoader::QFactoryLoader() checking.” Also, are you doing any voodoo before QApplication app(argc, argv); in main.cpp? QT_DEBUG_PLUGINS=1, yeah I also seen that it's not working on the command line (only in QtCreator, which is kind of pointless. Been meaning to check why, if I find why I'll update my blog post). LibEGL.dll, correct, not needed.

Anyway, the tool that could help 'ListDLLs': Launch it from cmd line and add your.exe file name as argument (you only a few of the first chars). Then install it on the deployment machine as well, and run it while your app hangs on that error box ('could not find or load the Qt platform plugin'). Now compare them. EDIT: also 'Dependency Walker': is a good tool, install on both machines, do File Open your.exe, then Profile, Start Profiling.