Qt creator won't detect my android device

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http://qt-project.org – Hi, I’m trying to start developing for Android using the Qt toolkit, but I’m stuck in the stage of deploying the application to the device (I’m following the tutorial at http://qt-project.org/doc/qtcreator-2.8/creator-android-app-tutorial.html). My setup is : Ubuntu Qt Creator 2.8.1 Qt 5.1.1 for Android armv7 Android device : Samsung Galaxy Y running Android 2.3.5 USB Debuggin is already enabled on my device, and “adb” detects it is connected. I can also send/receive files to/from the device via USB. I’m targeting an application at (HowTos)