cmakelist：错误：没有将目标设置为“all”的规则。停

问：

我收到此错误：

No rule to make target 'all'.  Stop.

这是我的CMake文件，我在Qt上运行它。

cmake_minimum_required(VERSION 3.0)

project(sorting-visualizer)

set(SFML_DIR "C:\\SFML-2.5.1\\lib\\cmake\\SFML")

set(SFML_ROOT "C:/SFML-2.5.1")

list(APPEND CMAKE_MODULE_PATH "C:\\SFML-2.5.1\\lib\\cmake\\SFML")

find_package(SFML COMPONENTS graphics window REQUIRED)

# Add your source files
add_executable(sorting-visualizer src/main.cpp src/Sortable.cpp src/SortAlgorithms.cpp src/SortController.cpp src/Utils.cpp)

include_directories("C:/SFML/include")
link_directories("C:/SFML/lib")

list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/CMake/Modules")

target_link_libraries(sorting-visualizer sfml-graphics)

add_custom_command(TARGET sorting-visualizer POST_BUILD
    COMMAND ${CMAKE_COMMAND} -E copy_directory
    "${SFML_ROOT}/bin" $<TARGET_FILE_DIR:sorting-visualizer>)

如何解决这个错误？