Ubuntu上的Qt Creator：运行cmake可执行文件

In Qt Creator on Ubuntu, I want to create a cmake C++ project (i.e. without using qmake). So, I create a new "Non-Qt Project->Plain C++ Project (Ubuntu CMake Build)". Then, I edit the main file and CMakeLists.txt as necessary. I click on the "build" icon, which builds the program fine and creates an executable. However, when I then click on the "run" icon, the "Application Output" window gives me the error: "No executable specified."In Qt Creator on Ubuntu, I want to create a cma