1002 CMake Error编译出错之ROS依赖缺失,ROS CMake Error

[zymouse]

bug源码

CMake Error at /opt/ros/melodic/share/catkin/cmake/catkinConfig.cmake:83 (find_package):
  Could not find a package configuration file provided by
  "image_exposure_msgs" with any of the following names:

    image_exposure_msgsConfig.cmake
    image_exposure_msgs-config.cmake

  Add the installation prefix of "image_exposure_msgs" to CMAKE_PREFIX_PATH
  or set "image_exposure_msgs_DIR" to a directory containing one of the above
  files.  If "image_exposure_msgs" provides a separate development package or
  SDK, be sure it has been installed.
Call Stack (most recent call first):
  flir_camera_driver/spinnaker_camera_driver/CMakeLists.txt:8 (find_package)


-- Configuring incomplete, errors occurred!
See also "/home/neousys/catkin_ws_filr/build/CMakeFiles/CMakeOutput.log".
See also "/home/neousys/catkin_ws_filr/build/CMakeFiles/CMakeError.log".
Invoking "cmake" failed

两种解决方法

方法一

1.0 $ sudo apt install ros-<ros版本>-<缺少的>
例如：
$ sudo apt install ros-kinetic-ros-control ros-kinetic-ros-controllers
$ sudo apt install ros-kinetic-image-exposure-msgs
2.0 怎么查找自己<缺少的>
例如查找：wfov_camera_msgs
$ apt-cache search ros-melodic |grep wfov
如下图

注意：只要输入正确的名称，方法一能够解决。但是依然会存在两个大坑
[哭]很不幸，我遇见了[哭]
1.0 第一个大坑：
$ sudo apt install  ros-kinetic-image-[按tab键自动补全]-------发现没有image-exposure-msgs这个
强行
$ sudo apt install ros-kinetic-image-exposure-msgs
出现下图bug：没有找到包
解决办法：
$ sudo apt update  # 根据$sources.list$确保你的 Debian 包索引是最新的
友情提示;这个指令应该经常执行，确保最新
2.1 换apt源
2.2 寻找apt源：百度-->清华apt源 或者 中科大apt源  
2.3 更换apt源：
$ sudo gedit /etc/apt/sources.list
$ sudo apt update  # 根据$sources.list$确保你的 Debian 包索引是最新的：

2.0 第二大坑：
2.1 apt的本质也是：先把deb安装包先下载下来，在进行安装

所以出现下图404--bug
现在可以[按tab键自动补全]，但是忘记添加ros密钥了
所以下载deb文件失败
解决办法：添加ros源密钥

bug源码

Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  ros-melodic-statistics-msgs
The following NEW packages will be installed:
  ros-melodic-image-exposure-msgs ros-melodic-statistics-msgs
0 upgraded, 2 newly installed, 0 to remove and 122 not upgraded.
Need to get 38.7 kB of archives.
After this operation, 369 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
Err:1 http://packages.ros.org/ros/ubuntu bionic/main amd64 ros-melodic-statistics-msgs amd64 0.14.1-1bionic.20210414.175625
  404  Not Found [IP: 140.211.166.134 80]
Err:2 http://packages.ros.org/ros/ubuntu bionic/main amd64 ros-melodic-image-exposure-msgs amd64 0.14.1-1bionic.20210414.212206
  404  Not Found [IP: 140.211.166.134 80]
E: Failed to fetch http://packages.ros.org/ros/ubuntu/pool/main/r/ros-melodic-statistics-msgs/ros-melodic-statistics-msgs_0.14.1-1bionic.20210414.175625_amd64.deb  404  Not Found [IP: 140.211.166.134 80]
E: Failed to fetch http://packages.ros.org/ros/ubuntu/pool/main/r/ros-melodic-image-exposure-msgs/ros-melodic-image-exposure-msgs_0.14.1-1bionic.20210414.212206_amd64.deb  404  Not Found [IP: 140.211.166.134 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

方法二

1.0 当方法一失败时：
以 $image-exposure-msgs$为例子
github搜索：$image-exposure-msgs$

1.0 把image-exposure-msgs文件夹移动到到自己的功能包里面
2.0 在把image-exposure-msgs添加功能包里的CMakeLists.txt相应位置就可以了，如下图

1.0 这个具体什么作用-大佬求解
find_package(catkin REQUIRED COMPONENTS
  image_exposure_msgs
)
2.0 这个具体什么作用-大佬求解
catkin_package(CATKIN_DEPENDS
  image_exposure_msgs 
)

总结：
1.0 典型的依赖缺失问题，缺什么安装什么
2.0 方法一就能解决任何问题，但是出现找不到包，或者404
2.1 肯定名字输错了或者密钥不对
比如：
正确的$sudo apt install ros-melodic-wfov-camera-msgs
错误的$ sudo apt install  ros-melodic-wfov_camera_msgs
3.0 注意：千万别手写和粘贴复制，都用[tab自动补全]，实在不能[tab自动补全]在粘贴复制