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报错：Cannot specify compile definitions for target “PRIVATE” which is not built by this project.
1）报错内容
CMake Error at CMakeLists.txt:72 (target_link_directories):
Cannot specify link directories for target “PRIVATE” which is not built by this project.
CMake Error at CMakeLists.txt:73 (target_compile_definitions):
Cannot specify compile definitions for target “PRIVATE” which is not built by this project.
CMake Error at CMakeLists.txt:80 (target_link_directories): Cannot
specify link directories for target “PRIVATE” which is not built by this project.
2）解决方案
这个错误提示的是在CMakeLists.txt文件中，试图为一个名为"PRIVATE"的目标设置属性，但是这个目标在项目中并不存在。
实际上，“PRIVATE”、"PUBLIC"和"INTERFACE"是target_*命令中的关键字，用于指定如何传递这些属性。
错误可能是因为没有正确地为target_*命令提供目标名称，或者目标名称和关键字的顺序被弄反了。
错误情况一
如果存在以下代码：
target_include_directories(PRIVATE ${CMAKE_SOURCE_DIR}/include)
应该更正为：
target_include_directories(YourActualTargetName PRIVATE ${CMAKE_SOURCE_DIR}/include)
错误情况二
如果存在以下代码：
target_link_directories(${ProjectName} PRIVATE ${RELEASE_LIB_DIR})
应该更正为：
target_link_directories(YourActualTargetName PRIVATE ${RELEASE_LIB_DIR})
其中，YourActualTargetName是你要设置属性的实际目标名称，
