Qt5 platforms plugins ?
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[quote author="soroush" date="1358092375"]Did you set QT_PLUGIN_PATH environment variable ? [/quote]
NO....
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Well, in my case, I have been using only the correct libraries, whether I have been building Qt (MSVC 2012) or using downloaded installation of Qt (MSVC 2010).
I dont have Qt in PATH. Seems like to be a very strange DLL Hell problem...
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[quote author="JKSH" date="1358040589"]Very strange. Some questions:
I presume it says Failed to load platform plugin "windows"., and not another plugin; is that correct?
What's your OS? What many bits?
Did you download the precompiled Qt 5.0.0, or build it yourself?
Is Qt 5 in your PATH?
Did you copy the other DLLs (e.g. Qt5Core.dll) into your application folder?[/quote]
Yes you are right. But it says that plugins are available... I really dont understand what is going on...
- Windows 7 Professional x64 bit.
- I have been using both of them but not at once.
- Qt is not in my environment
- Yes, I did.
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I'm quite lost here, to be honest. :-/
Try running your program from within CDB -- it will show you a list of DLLs that are being loaded, and it just might provide a clue.
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Well, I have dumped the library paths but the only one was:
@C:/Qt/5.0.0/msvc2010/plugins@What makes no sense...
When I run it from QtCreator, it works, but not as a stand-alone...
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Well, I have found solution in copying also libEGL.dll or libEGLd.dll (depends on what type of building do you run!) into the root application library...what a freaking mistake!
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[quote author="Peppy" date="1358179576"]Well, I have found solution in copying also libEGL.dll or libEGLd.dll (depends on what type of building do you run!) into the root application library...what a freaking mistake!
Thanks to: http://qt-project.org/forums/viewthread/21269[/quote]
Wow! Mine worked too! Thanks
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Solved it for me as well.
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Just wanted to say I had this issue as well. Solve for me. Found through google so I figured I'd bump it.
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copy the qwindows.dll from qtdir/plugins/platform to your application_directory/platform and voila it solves the problem.
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Adding libEGL.dll worked for me too. Was long for me to find the solution so I figured I'd bump it too.
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I was getting that exact same "failed to load" error, however, I didn't compile my own binaries - I used the ones from the softwareforge project qt-x64 : http://sourceforge.net/projects/qtx64/ .
It turns out that they bundle a utility in there called qtbinpatcher.exe that patches the binaries where the paths have been hardcoded in. Once I ran that everything worked.
Is it just me, or does hardcoding an absolute path into the binaries like that seem like horrible idea? What were they thinking?
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[quote author="Ph0t0n" date="1392352947"]I was getting that exact same "failed to load" error, however, I didn't compile my own binaries - I used the ones from the softwareforge project qt-x64 : http://sourceforge.net/projects/qtx64/ .
It turns out that they bundle a utility in there called qtbinpatcher.exe that patches the binaries where the paths have been hardcoded in. Once I ran that everything worked.
Is it just me, or does hardcoding an absolute path into the binaries like that seem like horrible idea? What were they thinking?[/quote]I agree that it is a horrible idea. Unfortunately, it's not something that's easy to undo -- so we'll have to deal with it for now.
Anyway, welcome to the Qt Dev Net! I'm glad you found a solution to your problem. Thank you for sharing your solution.