error while loading shared libraries: libAbout.so.1: cannot open shared object file: No such file or directory

[Brashen]

On a prog i try to use a shared lib that i created .
From QtCreator it works well , when i try from terminal i have this error msg :
error while loading shared libraries: libAbout.so.1: cannot open shared object file: No such file or directory

on .pro file i try with
unix:!macx: LIBS += -L$$PWD/../../lib/libqt/bin/ -lAbout

INCLUDEPATH += $$PWD/../../lib/libqt/bin
INCLUDEPATH += $$PWD/../../lib/libqt/headers
DEPENDPATH += $$PWD/../../lib/libqt/bin

or

unix:!macx: LIBS += -L/home/user/path/lib/libqt/bin/ -lAbout

INCLUDEPATH += /home/user/path/lib/libqt/bin
INCLUDEPATH += /home/user/path/lib/libqt/headers
DEPENDPATH += /home/user/path/lib/libqt/bin

but nothing change.

[sierdzio]

You need to set LD_LIBRARY_PATH to point to the folder where libAbout.so is present. Or put libAbout.so in standard library search paths (/usr/lib and the like).

Or compile with RPATH (see QMAKE_RPATH).

Or use deployment tool like linuxdeployqt.

Or compile your library statically.