CMake 错误：包含找不到加载文件答案

【问题标题】：CMake Error: include could not find load fileCMake 错误：包含找不到加载文件
【发布时间】：2020-01-31 01:56:09
【问题描述】：

我正在尝试在项目中安装和使用库“ifopt”，但出现一些错误

我使用了以下命令（喜欢这里：https://github.com/ethz-adrl/ifopt/blob/master/README.md）：

sudo apt-get install cmake libeigen3-dev coinor-libipopt-dev
git clone https://github.com/ethz-adrl/ifopt.git
cd ifopt
mkdir build 
cd build
cmake ..
make
sudo make install

然后我添加到我的 CMakeLists：

find_package(ifopt)
add_executable(testifopt src/testifopt.cpp)
target_link_libraries(testifopt PUBLIC ifopt::ifopt_ipopt)

这就是我得到的，使用 catkin_make：

CMake Error at /home/simone/ifopt/ifopt-config.cmake:40 (include): include could not find load file: /home/simone/ifopt/ifopt_core-targets.cmake    
Call Stack (most recent call first): push_optimal_planner/CMakeLists.txt:30 (find_package)


CMake Warning (dev) at /home/simone/ifopt/ifopt-config.cmake:44 (get_target_property):
Policy CMP0045 is not set: Error on non-existent target in
get_target_property.  Run "cmake --help-policy CMP0045" for policy details.
Use the cmake_policy command to set the policy and suppress this warning.
get_target_property() called with non-existent target "ifopt::ifopt_core".
Call Stack (most recent call first): push_optimal_planner/CMakeLists.txt:30 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Error at /home/simone/ifopt/ifopt-config.cmake:47 (get_property): get_property could not find TARGET ifopt::ifopt_core. Perhaps it has not yet been created.
Call Stack (most recent call first): push_optimal_planner/CMakeLists.txt:30 (find_package)

怎么了？感谢您的帮助。

【问题讨论】：

And this is what i get 什么时候做什么？是什么导致了您发布的消息？这些都是你看到的消息吗？
当您为 ifopt 配置 CMake 时，缺少的文件 ifopt_core-targets.cmake 和其他类似文件应该由 CMake 自动生成。你能确认这些文件存在于/home/simone/ifopt吗？
@squarekittles 是的，文件存在于/home/simone/ifopt/build/ifopt_core/CMakeFiles/Export/share/ifopt/cmake的文件夹中
@KamilCuk 我试图使用命令：“catkin_make”来构建我的项目
也许你应该添加catkin和ros标签

标签： cmake ros catkin

【解决方案1】：

解决了，

我需要更新 Ros，重新安装 IfOpt，并且我还添加到 CMakeLists 这一行：

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DBOOST_MATH_DISABLE_FLOAT128")

【讨论】：