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Error deploying Release

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Hey Everyone! Thanks for helping! I have created an application that runs on windows recording/reading a RFID tag. It also access a database (SQL Server) to acquire the data to be recorded. I’m trying to deploy it dinamically with all the DLLs it requires. I’ve checked on dependency walker and also done a few steps from the Deploy_an_Application_on_Windows (http://qt-project.org/wiki/Deploy_an_Application_on_Windows) wiki to get the package ready. When I try to run it on the Qt Creator and on my developing computer, it works fine all the way. But when i try to copy the .exe with the dlls it needs to run on other machine, it show the “missing windows plugin” message. One thing I noticed is that even when starting the application on my developing pc after copying all the files (dlls, qml, and plugins) as explained on the Deploy_an_Application_on_Windows, the application does not start normally. it starts but when doing the first access to the database it crashes. If I use the qt installed on my windows it runs fine. Anyone has an ideia what could this be?

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