Hi rizoritis, A missing (or not found) OpengGL library on the target would produce such an error, as Qt dlls will fail to dynamically link to OpenGL. Which board is it, and are you sure it supports OpenGL ES 0 ? You may try configuring Qt for OpenGL ES 0 which may be supported, or manually looking for the dll on the target. I don't remember the usual name on WEC, but it surely contains "gl" and/or "es". Edit: You'd also need the EGL library for OpenGL context initialization.