What is makeCurrent() failed error?



  • i wanna run the executable file with "./Alpha_shape_3" command i got :
    The constructor with a QGLContext is
    deprecated, use the regular
    contructor instead.
    QXcbIntegration: Cannot create
    platform OpenGL context, neither GLX
    nor EGL are enabled
    QXcbIntegration: Cannot create
    platform OpenGL context, neither GLX
    nor EGL are enabled
    QOpenGLWidget: Failed to create
    context
    QXcbIntegration: Cannot create
    platform OpenGL context, neither GLX
    nor EGL are enabled
    QOpenGLWidget: Failed to create
    context
    composeAndFlush: makeCurrent()
    failed
    composeAndFlush: makeCurrent()
    failed
    composeAndFlush: makeCurrent()
    failed
    composeAndFlush: makeCurrent()
    failed

    it will continue until i close CGAL 3D Alpha shape window what's the problem? How can I solve it?


  • Lifetime Qt Champion

    Hi and welcome to devnet,

    Please provide more information. What version of Qt did you use to build that project ? What Linux distribution are you running ? What is your graphic hardware ?


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