linux - Exec format error, Qt5 online installer on Lubuntu -

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i've looked everywhere , can't seem find answer posting here.

using 64bit lubuntu vm,

downloaded qt online installer from: https://www.qt.io/download-open-source

the correct architecture installer downloaded

after sudo chmod +x "qt-opensource-linux-x64....run" , typing in ./qt-opensource....

i get: cannot execute binary file: exec format error

so don't know take here, didn't check checksum because couldn't find checksum on qt's download page download twice in case download corrupted , got same problem on both occasions.

thanks!


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