我想将 somefile.bmp 复制到我的“${PROJECT_BINARY_DIR}/bin/data”文件夹，但它不起作用。但是，如果我将路径更改为“${PROJECT_BINARY_DIR}/bin”，它可以正常工作。我怎样才能解决这个问题？
add_custom_command(TARGET Invaders POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_if_different
"${PROJECT_SOURCE_DIR}/Game/data/somefile.bmp"
"${PROJECT_BINARY_DIR}/bin/data")
该目录不存在，我猜。您需要在复制之前创建它：
add_custom_command(TARGET Invaders POST_BUILD
COMMAND ${CMAKE_COMMAND} -E make_directory
"${PROJECT_SOURCE_DIR}/Game/data"
COMMAND ${CMAKE_COMMAND} -E copy_if_different
"${PROJECT_SOURCE_DIR}/Game/data/somefile.bmp"
"${PROJECT_BINARY_DIR}/bin/data")
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我来说两句