QT5.7 cross compiler libGLESv2.so.2 not find

  • I have following the steps by :
    in the description "12. Run qopenglwidget we deployed to /home/pi. At this point it should just work at fullscreen with 60 FPS and mouse, keyboard, and possibly touch support. "
    but i find the qopenglwidget can't run for : error while loading shared libraries libGLESv2.so.2 cannot open shared object: no such fine or directory .
    I use ldd qopenglwidget and find "libGLESv2.so.2==>no found "
    i don't know how to fix this issue, and why it was happened, there are no libGLESv2.so.2 seems in my raspberry

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