[SOLVED] Failed to load platform plugin.
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wrote on 4 Jan 2013, 12:38 last edited by
[quote author="Lukas Geyer" date="1357301238"]It is actually platform s /qwindows.dll, not platform/qwindows.dll.[/quote]
Yea, my typo
[quote author="Lukas Geyer" date="1357301238"]Be aware that you will have to deploy platforms/qwindows d .dll if you are deploying a debug build.
With these changes, do you still get <code>Failed to load platform plugin "windows". Available platforms are:</code>?[/quote]
I tried both debug and release builds with libraries with/without debugging symbols. It's still same.
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wrote on 4 Jan 2013, 13:15 last edited by
Using the <code>-platformpluginpath</code> command line option or the <code>QT_QPA_PLATFORM_PLUGIN_PATH</code> environment variable might be another option, but Qt should pickup the plugin automatically when placed in the correct location.
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wrote on 4 Jan 2013, 14:24 last edited by
[quote author="Lukas Geyer" date="1357305345"]Using the <code>-platformpluginpath</code> command line option or the <code>QT_QPA_PLATFORM_PLUGIN_PATH</code> environment variable might be another option, but Qt should pickup the plugin automatically when placed in the correct location.[/quote]
It is there, I copied everything beside the program executable. I believe it's in visible scope for linkage. The problem might be related to msvcrt .
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qwindows.dll shouldn't be in the same dir as the executable. Put it in the platforms subdirectory.
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wrote on 4 Jan 2013, 14:54 last edited by
[quote author="Krzysztof Kawa" date="1357310438"]qwindows.dll shouldn't be in the same dir as the executable. Put it in the platforms subdirectory.[/quote]
Ah my bad memory :P In fact I have had same problem with paths for mysql driver on windows... Now works fine.Thank you
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wrote on 4 Jan 2013, 20:36 last edited by
[quote author="Lukas Geyer" date="1357298812"]Did you deploy platform/qwindows.dll as well? (It will not show up in Dependency Walker).[/quote]
FWIW: DLL's that are loaded at runtime, like Plug-in DLL's, do show up in Dependency Walker, but only when you use the "profiling" feature. They of course cannot be found by only analyzing the static import tables...
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wrote on 6 Jan 2013, 12:14 last edited by
Profiling never worked quite well for me (STATUS_STACK_BUFFER_OVERRUN and alike), but good to know. Thanks for sharing.
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wrote on 6 Feb 2013, 22:00 last edited by
Can you elaborate how this issue was fixed ?
You created a "platforms" directory inside your project folder and put the qwindows.dll in there ? -
wrote on 5 Mar 2013, 16:11 last edited by
Looks like you have to create "platforms" directory in folder, were your program runs. For example, I have "debug" folder in my project, and I copied "platforms" directory there from "c:\Qt\Qt5.0.1\5.0.1\mingw47_32\plugins". This solved my problem.
Also you can copy other plugins if needed.
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qwindows.dll shouldn't be in the same dir as the executable. Put it in the platforms subdirectory.
wrote on 6 Sept 2015, 17:21 last edited byHi. I did as you said and it worked! thanks!
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