Unsolved <Static build> qt.qpa.plugin: Could not find or load the Qt platform plugin "windows" in ""

[Nanda1605]

Hi,
I would like to statically link a QT program in Microsoft Visual C ++ 64Bit. For this I have compiled the QT library statically. There are no issue when I compile my application but when start a program, I get the error:

qt.qpa.plugin: Could not find the Qt platform plugin "windows" in ""
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem

I searched couple of post and tried but nothing helped me out. Like below

• I have already linked almost all of the .libraries
• Link error when i add as Q_IMPORT_PLUGIN in main.cpp
• included Qt5PlatformCompositorSupport.lib (as i didnt find the Qt5PlatformSupport.lin)

PS:
*I tested the dynamic version and it works:
*Using CMAKE file to compile the application

[JonB]

@Nanda1605
Set environment variable QT_DEBUG_PLUGINS=1 and then run your application. Look at the end of the long output you should get for why it gives you your error message.

[Nanda1605]

@JonB
I did, set the variable in cmake as below but I dont see any new lines of error , it still shows the same. I also set the plugin variable

set(QT_QPA_PLATFORM_PLUGIN_PATH "C:\\QtStatic\\Qt5132\\plugins\\platforms")
set(QT_PLUGIN_PATH "C:\\QtStatic\\Qt5132\\plugins")
Set(QT_DEBUG_PLUGINS 1)

[SGaist]

Hi,

It's an environment variable.

You have to set it in our IDE or the terminal you are using before starting your application.

[Nanda1605]

@SGaist
I configured that in the environmental variable and started the application. This time i face the same error but with the path

C:\test\QTStatic\attunesoftware\FwUpdater\FWUtility\FirmwareUpdaterUtility\release>FwUtility.exe
qt.qpa.plugin: Could not find the Qt platform plugin "windows" in "C:\QtStatic\Qt5132\plugins\platforms"
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

PS: Also i tried the path as below but didnt work. And in this location C:\QtStatic\Qt5132\plugins\platforms - i have qwindows.lib file

• C:\QtStatic\Qt5132\plugins
• C:\QtStatic\Qt5132

[SGaist]

I just realised: you are supposed to have a static Qt build, the plugins should be built-in. If that not the case then you likely have an issue with your build.

On maybe silly question, did you call make install after you built Qt ?

[Nanda1605]

@SGaist
I built QT as static with the required configuration. I could see the below files in platform plugins

• qwindows.lib
• qwindows.prl
• qminimal.lib
• qminimal.prl
• qdirect. qoffscreen... qwebgl

After build I use cmake install command to install the application.
Still not resolved