Error in last building step

[planetarioros]

I'm using Ubuntu 14.04 and I get this error after the command make (last building step).
Thanks in advance.

root@produccion-planetario:/home/produccion/omnidome# make
[ 0%] Automatic MOC and UIC for target omni
AutoMoc: /home/produccion/omnidome/lib/include/omni/mapping/Interface.h:0: Note: No relevant classes found. No output generated.
AutoMoc: /home/produccion/omnidome/lib/include/omni/input/Interface.h:0: Note: No relevant classes found. No output generated.
AutoMoc: /home/produccion/omnidome/lib/include/omni/canvas/Interface.h:0: Note: No relevant classes found. No output generated.
[ 0%] Built target omni_autogen
[ 0%] Automatic RCC for src/libomni.qrc
Scanning dependencies of target omni
[ 0%] Building CXX object lib/CMakeFiles/omni.dir/omni_autogen/mocs_compilation.cpp.o
[ 1%] Building CXX object lib/CMakeFiles/omni.dir/src/BlendMask.cpp.o
In file included from /home/produccion/omnidome/lib/src/BlendMask.cpp:20:
In file included from /home/produccion/omnidome/lib/include/omni/BlendMask.h:24:
In file included from /usr/include/qt5/QtCore/QRectF:1:
In file included from /usr/include/qt5/QtCore/qrect.h:45:
In file included from /usr/include/qt5/QtCore/qsize.h:45:
In file included from /usr/include/qt5/QtCore/qnamespace.h:45:
In file included from /usr/include/qt5/QtCore/qglobal.h:82:
In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/algorithm:62:
In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/bits/stl_algo.h:65:
In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/random:39:
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/cstdio:120:11: error: no member named 'gets' in the global namespace
using ::gets;
~~^
In file included from /home/produccion/omnidome/lib/src/BlendMask.cpp:20:
In file included from /home/produccion/omnidome/lib/include/omni/BlendMask.h:25:
In file included from /home/produccion/omnidome/lib/include/omni/BlendBrush.h:24:
In file included from /home/produccion/omnidome/lib/include/omni/Buffer.h:26:
In file included from /home/produccion/omnidome/lib/include/omni/util.h:30:
In file included from /home/produccion/omnidome/lib/include/omni/exception.h:25:
/home/produccion/omnidome/lib/include/omni/Factory.h:162:38: error: no member named 'toStdString' in 'QByteArray'
return hashstd::string()(_id.toStdString());
~~~ ^
2 errors generated.
make[2]: *** [lib/CMakeFiles/omni.dir/src/BlendMask.cpp.o] Error 1
make[1]: *** [lib/CMakeFiles/omni.dir/all] Error 2
make: *** [all] Error 2

[WilstonOreo]

I just tested it on Ubuntu 18.04 and Qt 5.9.8. Which Qt Version are you using, something below 5.4? The QByteArray member function was added with Qt 5.4.