使用目标target_include_directories时，CMake无法指定包含目录 [英] Cmake Cannot specify include directories when use target target_include_directories

问题描述

我在项目中使用子模块GitHub，现在我想使用 target_include_directories 将文件包含在我的项目类中

I'm using the submodule GitHub inside my project and now I want to use the target_include_directories for including the file inside the my project class

这是我的cmake配置

This is my cmake configuration

cmake_minimum_required(VERSION 3.9)
project(SpyCBlock)

set(CMAKE_CXX_STANDARD 14)

#bitcoin rpc lib
find_library(bitcoinapi 0.3 REQUIRED)

target_include_directories(rapidjson PUBLIC include/rapidjson/include)

target_include_directories(spycblockrpc PUBLIC include/spycblockrpc)

target_include_directories(btccryptography PUBLIC include/bitcoin-cryptography-library)

add_executable(

        ${PROJECT_NAME}

        #other inclusion file cpp

        #cpp-properties file include
        include/cpp-properties/src/Properties.cpp
        include/cpp-properties/src/PropertiesParser.cpp
        include/cpp-properties/src/PropertiesUtils.cpp

        #include bitcoin-cryptography-library
        include/bitcoin-cryptography-library/cpp/Sha256.cpp
        include/bitcoin-cryptography-library/cpp/Sha256Hash.cpp
        include/bitcoin-cryptography-library/cpp/Utils.cpp

        #include spycblocrpc
        include/spycblockrpc/core/graph/TransactionGraph.cpp
        include/spycblockrpc/core/graph/WrapperInformations.cpp
        include/spycblockrpc/ConfiguratorSingleton.cpp

        include/spycblockrpc/commands/DecodeScriptCommand.cpp
        include/spycblockrpc/commands/DecodeRawTransaction.cpp
        include/spycblockrpc/commands/HeightBlockchainCommand.cpp
        include/spycblockrpc/commands/DecodeBlockAtIndexCommand.cpp

)

#bitcoin rpc lib
target_link_libraries(SpyCBlockTests bitcoinapi)
target_link_libraries(${PROJECT_NAME} bitcoinapi)

运行时CMake我有这个错误

When run CMake I have this error

Starting to parse CMake project.
CMake Error at CMakeLists.txt:20 (target_include_directories):
  Cannot specify include directories for target "rapidjson" which is not
  built by this project.


CMake Error at CMakeLists.txt:22 (target_include_directories):
  Cannot specify include directories for target "spycblockrpc" which is not
  built by this project.


CMake Error at CMakeLists.txt:24 (target_include_directories):
  Cannot specify include directories for target "btccryptography" which is
  not built by this project.


CMake Error at CMakeLists.txt:26 (target_compile_definitions):
  Cannot specify compile definitions for target "cppproperties" which is not
  built by this project.

我是C ++和cmake的新手，我听不懂我错了

I'm new with the C++ and the cmake and I can't understand what I'm wrong

推荐答案

我要添加此问题的解决方案，如何在注释中建议此代码错误，因为有两个问题

I want add the solution to this problem, how suggestion in the comment this code this wrong because have two problem

   target_include_directories(${PROJECT_NAME}  PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>/include/rapidjson/include)

1. 目标的第一个参数必须是可执行文件的名称，因此在这种情况下，就是SpyCBlock



2. 第二个问题是在声明目标之前定义目标，因此 target_include_directories（SpyCBlock ...）在 add_executable（$ {PROJECT_NAME} ...）

之前定义正确的是

add_executable(
                ${PROJECT_NAME}

                #other inclusion file cpp

                #cpp-properties file include
                include/cpp-properties/src/Properties.cpp
                include/cpp-properties/src/PropertiesParser.cpp
                include/cpp-properties/src/PropertiesUtils.cpp

                #include bitcoin-cryptography-library
                include/bitcoin-cryptography-library/cpp/Sha256.cpp
                include/bitcoin-cryptography-library/cpp/Sha256Hash.cpp
                include/bitcoin-cryptography-library/cpp/Utils.cpp

                #include spycblocrpc
                include/spycblockrpc/core/graph/TransactionGraph.cpp
                include/spycblockrpc/core/graph/WrapperInformations.cpp
                include/spycblockrpc/ConfiguratorSingleton.cpp

                include/spycblockrpc/commands/DecodeScriptCommand.cpp
                include/spycblockrpc/commands/DecodeRawTransaction.cpp
                include/spycblockrpc/commands/HeightBlockchainCommand.cpp
                include/spycblockrpc/commands/DecodeBlockAtIndexCommand.cpp

        )

       target_include_directories(${PROJECT_NAME}  PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>/include/rapidjson/include)

现在我可以包括该库了< bitcoin-cryptography-library / Sha256.h>

now I can include the library how <bitcoin-cryptography-library/Sha256.h>

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