[Interest] Windows deployment. Failed to start because of missing platform plugin...

[Bo Thorsen]

Den 28-08-2015 kl. 10:01 skrev Igor Mironchik:
> I'm trying to deploy Qt Windows application. And it failed to start with
> the next message...
>
> This application failed to start because it could not find or load the
> Qt platform plugin "windows".
>
> Reinstalling the application may fix this problem.
>
> Platform plugin is exist in ./platforms/qwindows.dll

It has to be in plugins/platforms/qwindows.dll.

> How can I solve this problem?

When I hit this, I copy every dll from Qt to my bin dir and every plugin 
to the plugins dir. If that runs, then you can start deleting stuff and 
see if your application still runs.

For example, I have this:

C:\Prog..\VikingSoftware\Pokerformance\
   pokerformance.exe
   Qt5Core.dll
   Qt5Gui.dll
   Qt5Network.dll
   Qt5Sql.dll
   Qt5Widgets.dll
   plugins\
     platforms\
       qwindows.dll
     sqldrivers\
       qsqlite.dll

This works for me with Qt 5.5.

I hope this helps.

Bo Thorsen,
Director, Viking Software.

-- 
Viking Software
Qt and C++ developers for hire
http://www.vikingsoft.eu