QT_QPA_PLATFORM_PLUGIN_PATH could not find the platform plugin
in the past we could track down DLL loading issues on windows with depends.exe and process explorer. Due to the intro of QT_QPA_PLATFORM_PLUGIN_PATH and the lame error message, we have to study now the source code to find the reason for the app load issues.
(How can such a "feature" pass the beta phase?)
Please improve at least the error message.
That error generally means that you don't have the platforms folder (containing the platform plugins) deployed alongside your application.