18:37:46: Running steps for project SimpleCalculus...
18:37:46: Starting: "/usr/bin/cmake" --build . --target all
[  6%] Automatic MOC, UIC and RCC for target SimpleCalculus
[  6%] Built target SimpleCalculus_autogen
[ 12%] Generating /home/nikittossii/Documents/QT/SimpleCalculus/SimpleCalculus_ru_RU.ts
Scanning directory '/home/nikittossii/Documents/QT/SimpleCalculus'...
Updating '../SimpleCalculus/SimpleCalculus_ru_RU.ts'...
    Found 1 source text(s) (0 new and 1 already existing)
Scanning dependencies of target SimpleCalculus
[ 18%] Building CXX object CMakeFiles/SimpleCalculus.dir/main.cpp.o
In file included from /home/nikittossii/Documents/QT/SimpleCalculus/mylayout.h:4:0,
                 from /home/nikittossii/Documents/QT/SimpleCalculus/mainwindow.h:5,
                 from /home/nikittossii/Documents/QT/SimpleCalculus/main.cpp:1:
/home/nikittossii/Documents/QT/SimpleCalculus/actionlayout.h:8:1: error: expected class-name before ‘{’ token
 {
 ^
/home/nikittossii/Documents/QT/SimpleCalculus/actionlayout.h:13:10: error: ‘void ActionLayout::_connect()’ marked ‘override’, but does not override
     void _connect() override{};
          ^~~~~~~~
In file included from /home/nikittossii/Documents/QT/SimpleCalculus/mylayout.h:5:0,
                 from /home/nikittossii/Documents/QT/SimpleCalculus/mainwindow.h:5,
                 from /home/nikittossii/Documents/QT/SimpleCalculus/main.cpp:1:
/home/nikittossii/Documents/QT/SimpleCalculus/statuslayout.h:9:29: error: invalid use of incomplete type ‘class MyLayout’
 class StatusLayout : public MyLayout{
                             ^~~~~~~~
/home/nikittossii/Documents/QT/SimpleCalculus/statuslayout.h:7:7: note: forward declaration of ‘class MyLayout’
 class MyLayout;
       ^~~~~~~~
/home/nikittossii/Documents/QT/SimpleCalculus/statuslayout.h:12:10: error: ‘void StatusLayout::_connect()’ marked ‘override’, but does not override
     void _connect() override{};
          ^~~~~~~~
In file included from /home/nikittossii/Documents/QT/SimpleCalculus/mylayout.h:6:0,
                 from /home/nikittossii/Documents/QT/SimpleCalculus/mainwindow.h:5,
                 from /home/nikittossii/Documents/QT/SimpleCalculus/main.cpp:1:
/home/nikittossii/Documents/QT/SimpleCalculus/controllayout.h:8:38: error: invalid use of incomplete type ‘class MyLayout’
 class ControlLayout : public virtual MyLayout
                                      ^~~~~~~~
In file included from /home/nikittossii/Documents/QT/SimpleCalculus/mylayout.h:5:0,
                 from /home/nikittossii/Documents/QT/SimpleCalculus/mainwindow.h:5,
                 from /home/nikittossii/Documents/QT/SimpleCalculus/main.cpp:1:
/home/nikittossii/Documents/QT/SimpleCalculus/statuslayout.h:7:7: note: forward declaration of ‘class MyLayout’
 class MyLayout;
       ^~~~~~~~
In file included from /home/nikittossii/Documents/QT/SimpleCalculus/mylayout.h:6:0,
                 from /home/nikittossii/Documents/QT/SimpleCalculus/mainwindow.h:5,
                 from /home/nikittossii/Documents/QT/SimpleCalculus/main.cpp:1:
/home/nikittossii/Documents/QT/SimpleCalculus/controllayout.h:14:10: error: ‘void ControlLayout::_connect()’ marked ‘override’, but does not override
     void _connect() override{};
          ^~~~~~~~
CMakeFiles/SimpleCalculus.dir/build.make:66: recipe for target 'CMakeFiles/SimpleCalculus.dir/main.cpp.o' failed
make[2]: *** [CMakeFiles/SimpleCalculus.dir/main.cpp.o] Error 1
make[1]: *** [CMakeFiles/SimpleCalculus.dir/all] Error 2
make: *** [all] Error 2
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/SimpleCalculus.dir/all' failed
Makefile:83: recipe for target 'all' failed
18:37:47: The process "/usr/bin/cmake" exited with code 2.
Error while building/deploying project SimpleCalculus (kit: Desktop Qt 5.12.6 GCC 64bit)
When executing step "CMake Build"
18:37:47: Elapsed time: 00:02.