MultiMC5 failed

[ 56%] Building CXX object libmultimc/CMakeFiles/libMultiMC.dir/src/gameupdatetask.cpp.o
In file included from /usr/include/qt/QtCore/qnamespace.h:45:0,
                 from /usr/include/qt/QtCore/qobjectdefs.h:45,
                 from /usr/include/qt/QtCore/qobject.h:47,
                 from /usr/include/qt/QtCore/QObject:1,
                 from /home/kiki/a/MultiMC5-master/libmultimc/include/gameupdatetask.h:19,
                 from /home/kiki/a/MultiMC5-master/libmultimc/src/gameupdatetask.cpp:16:
/usr/include/qt/QtCore/qfile.h: In member function 'virtual bool GameUpdateTask::downloadFile(const FileToDownload&)':
/usr/include/qt/QtCore/qfile.h:152:20: error: 'QFile::QFile(const QFile&)' is private
     Q_DISABLE_COPY(QFile)
                    ^
/usr/include/qt/QtCore/qglobal.h:1050:5: note: in definition of macro 'Q_DISABLE_COPY'
     Class(const Class &) Q_DECL_EQ_DELETE;\
     ^
/home/kiki/a/MultiMC5-master/libmultimc/src/gameupdatetask.cpp:126:29: error: within this context
   QFile outFile = file.path();
                             ^
/home/kiki/a/MultiMC5-master/libmultimc/src/gameupdatetask.cpp:126:29: error: use of deleted function 'QFile::QFile(const QFile&)'
In file included from /usr/include/qt/QtCore/qnamespace.h:45:0,
                 from /usr/include/qt/QtCore/qobjectdefs.h:45,
                 from /usr/include/qt/QtCore/qobject.h:47,
                 from /usr/include/qt/QtCore/QObject:1,
                 from /home/kiki/a/MultiMC5-master/libmultimc/include/gameupdatetask.h:19,
                 from /home/kiki/a/MultiMC5-master/libmultimc/src/gameupdatetask.cpp:16:
/usr/include/qt/QtCore/qfile.h:152:20: error: declared here
     Q_DISABLE_COPY(QFile)
                    ^
/usr/include/qt/QtCore/qglobal.h:1050:5: note: in definition of macro 'Q_DISABLE_COPY'
     Class(const Class &) Q_DECL_EQ_DELETE;\
     ^
In file included from /usr/include/qt/QtCore/qobject.h:50:0,
                 from /usr/include/qt/QtCore/QObject:1,
                 from /home/kiki/a/MultiMC5-master/libmultimc/include/gameupdatetask.h:19,
                 from /home/kiki/a/MultiMC5-master/libmultimc/src/gameupdatetask.cpp:16:
/usr/include/qt/QtCore/qlist.h: In instantiation of 'void QList<T>::node_construct(QList<T>::Node*, const T&) [with T = FileToDownload]':
/usr/include/qt/QtCore/qlist.h:497:32:   required from 'void QList<T>::append(const T&) [with T = FileToDownload]'
/home/kiki/a/MultiMC5-master/libmultimc/src/gameupdatetask.cpp:81:106:   required from here
/usr/include/qt/QtCore/qlist.h:368:35: error: use of deleted function 'FileToDownload& FileToDownload::operator=(const FileToDownload&)'
     else *reinterpret_cast<T*>(n) = t;
                                   ^
In file included from /home/kiki/a/MultiMC5-master/libmultimc/src/gameupdatetask.cpp:16:0:
/home/kiki/a/MultiMC5-master/libmultimc/include/gameupdatetask.h:32:7: note: 'FileToDownload& FileToDownload::operator=(const FileToDownload&)' is implicitly deleted because the default definition would be ill-formed:
 class FileToDownload : public QObject
       ^
In file included from /usr/include/qt/QtCore/qnamespace.h:45:0,
                 from /usr/include/qt/QtCore/qobjectdefs.h:45,
                 from /usr/include/qt/QtCore/qobject.h:47,
                 from /usr/include/qt/QtCore/QObject:1,
                 from /home/kiki/a/MultiMC5-master/libmultimc/include/gameupdatetask.h:19,
                 from /home/kiki/a/MultiMC5-master/libmultimc/src/gameupdatetask.cpp:16:
/usr/include/qt/QtCore/qglobal.h:1051:12: error: 'QObject& QObject::operator=(const QObject&)' is private
     Class &operator=(const Class &) Q_DECL_EQ_DELETE;
            ^
/usr/include/qt/QtCore/qobject.h:404:5: note: in expansion of macro 'Q_DISABLE_COPY'
     Q_DISABLE_COPY(QObject)
     ^
In file included from /home/kiki/a/MultiMC5-master/libmultimc/src/gameupdatetask.cpp:16:0:
/home/kiki/a/MultiMC5-master/libmultimc/include/gameupdatetask.h:32:7: error: within this context
 class FileToDownload : public QObject
       ^
/home/kiki/a/MultiMC5-master/libmultimc/include/gameupdatetask.h:32:7: error: use of deleted function 'QObject& QObject::operator=(const QObject&)'
In file included from /usr/include/qt/QtCore/qnamespace.h:45:0,
                 from /usr/include/qt/QtCore/qobjectdefs.h:45,
                 from /usr/include/qt/QtCore/qobject.h:47,
                 from /usr/include/qt/QtCore/QObject:1,
                 from /home/kiki/a/MultiMC5-master/libmultimc/include/gameupdatetask.h:19,
                 from /home/kiki/a/MultiMC5-master/libmultimc/src/gameupdatetask.cpp:16:
/usr/include/qt/QtCore/qglobal.h:1051:12: error: declared here
     Class &operator=(const Class &) Q_DECL_EQ_DELETE;
            ^
/usr/include/qt/QtCore/qobject.h:404:5: note: in expansion of macro 'Q_DISABLE_COPY'
     Q_DISABLE_COPY(QObject)
     ^
make[2]: *** [libmultimc/CMakeFiles/libMultiMC.dir/src/gameupdatetask.cpp.o] Error 1
make[1]: *** [libmultimc/CMakeFiles/libMultiMC.dir/all] Error 2
make: *** [all] Error 2
17:13:49: The process "/usr/bin/make" exited with code 2.
Error while building/deploying project MultiMC (kit: Desktop)
When executing step 'Make'
17:13:49: Elapsed time: 01:23.