python - ROS:找不到包配置文件

Question

编辑:好的，所以我决定随机尝试一些东西，我也将 rospy 指定为必需的组件。我从我的 cmakelists 文件中删除了所有 OpenCV 的东西，现在它只是吐出关于 rospy 的相同错误..和 std_msgs 的相同处理。我首先在我使用 ROS 教程的这台计算机上开始使用 ROS，直到此时一切正常..

我知道很多人都遇到了这个问题，运行 catkin_make/cmake 并发现它没有找到您的 OpenCV 文件:

Could not find a package configuration file provided by "OpenCV" with any
  of the following names:

    OpenCVConfig.cmake
    opencv-config.cmake

当我尝试仅使用 roscpp、rospy 等时，还有这个错误:

  Could not find a package configuration file provided by "roscpp" with any
  of the following names:

roscppConfig.cmake
roscpp-config.cmake

到目前为止，这是我尝试过的:导出 OpenCV_DIR、CMAKE_PREFIX_PATH 等等。人们在这里建议的大多数东西都在堆栈上。仍然出现此错误。检查以确保我已正确安装 OpenCV，使用 IDMTEST，我发现一切都是。我可以将 opencv 与 python 等完美搭配使用。

以及来自评论的 Tsyvarev 的解决方案:如果它是简单的 find_package(OpenCV)，那么任何东西都应该有所帮助:1. cmake -DOpenCV_DIR=/usr/share/OpenCV .... 2. cmake -DCMAKE_PREFIX_PATH=/usr。 3. 导出 CMAKE_PREFIX_PATH=/usr。

我有这些 .cmake 文件位于:/usr/共享/OpenCV和/usr/local/share/OpenCV

不确定它们是否可以位于其他任何地方，尝试进行大量搜索，它似乎只是指向这两个特定文件夹

查看我的 CMakeLists.txt 文件，并按照 .cmake 文件的指示添加目录、目标库等

我真的不知道现在该做什么。

一些代码/文件:

    cmake_minimum_required(VERSION 2.8.3)
project(briancv)

## Find catkin macros and libraries
## if COMPONENTS list like find_package(catkin REQUIRED COMPONENTS xyz)
## is used, also find other catkin packages
find_package(catkin REQUIRED COMPONENTS
   roscpp
   rospy
   std_msgs
  message_generation
)

## System dependencies are found with CMake's conventions
# find_package(Boost REQUIRED COMPONENTS system)


## Uncomment this if the package has a setup.py. This macro ensures
## modules and global scripts declared therein get installed
## See http://ros.org/doc/api/catkin/html/user_guide/setup_dot_py.html
# catkin_python_setup()

################################################
## Declare ROS messages, services and actions ##
################################################

## To declare and build messages, services or actions from within this
## package, follow these steps:
## * Let MSG_DEP_SET be the set of packages whose message types you use in
##   your messages/services/actions (e.g. std_msgs, actionlib_msgs, ...).
## * In the file package.xml:
##   * add a build_depend tag for "message_generation"
##   * add a build_depend and a run_depend tag for each package in MSG_DEP_SET
##   * If MSG_DEP_SET isn't empty the following dependency has been pulled in
##     but can be declared for certainty nonetheless:
##     * add a run_depend tag for "message_runtime"
## * In this file (CMakeLists.txt):
##   * add "message_generation" and every package in MSG_DEP_SET to
##     find_package(catkin REQUIRED COMPONENTS ...)
##   * add "message_runtime" and every package in MSG_DEP_SET to
##     catkin_package(CATKIN_DEPENDS ...)
##   * uncomment the add_*_files sections below as needed
##     and list every .msg/.srv/.action file to be processed
##   * uncomment the generate_messages entry below
##   * add every package in MSG_DEP_SET to generate_messages(DEPENDENCIES ...)

## Generate messages in the 'msg' folder
 add_message_files(
   FILES
   Num.msg

 )

## Generate services in the 'srv' folder
 add_service_files(
   FILES
   AddTwoInts.srv
 )

## Generate actions in the 'action' folder
# add_action_files(
#   FILES
#   Action1.action
#   Action2.action
# )

## Generate added messages and services with any dependencies listed here
 generate_messages(
   DEPENDENCIES
   std_msgs  # Or other packages containing msgs
 )

################################################
## Declare ROS dynamic reconfigure parameters ##
################################################

## To declare and build dynamic reconfigure parameters within this
## package, follow these steps:
## * In the file package.xml:
##   * add a build_depend and a run_depend tag for "dynamic_reconfigure"
## * In this file (CMakeLists.txt):
##   * add "dynamic_reconfigure" to
##     find_package(catkin REQUIRED COMPONENTS ...)
##   * uncomment the "generate_dynamic_reconfigure_options" section below
##     and list every .cfg file to be processed

## Generate dynamic reconfigure parameters in the 'cfg' folder
# generate_dynamic_reconfigure_options(
#   cfg/DynReconf1.cfg
#   cfg/DynReconf2.cfg
# )

###################################
## catkin specific configuration ##
###################################
## The catkin_package macro generates cmake config files for your package
## Declare things to be passed to dependent projects
## INCLUDE_DIRS: uncomment this if you package contains header files
## LIBRARIES: libraries you create in this project that dependent projects also need
## CATKIN_DEPENDS: catkin_packages dependent projects also need
## DEPENDS: system dependencies of this project that dependent projects also need
catkin_package(
    ...
    CATKIN_DEPENDS message_runtime ...
    ...)
#  INCLUDE_DIRS include
#  LIBRARIES beginner_tutorials
#  CATKIN_DEPENDS roscpp rospy
#  DEPENDS system_lib


###########
## Build ##
###########

## Specify additional locations of header files
## Your package locations should be listed before other locations
# include_directories(include)
include_directories(
  ${catkin_INCLUDE_DIRS}
)

## Declare a C++ library
# add_library(beginner_tutorials
#   src/${PROJECT_NAME}/beginner_tutorials.cpp
# )

## Add cmake target dependencies of the library
## as an example, code may need to be generated before libraries
## either from message generation or dynamic reconfigure
# add_dependencies(beginner_tutorials ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})

## Declare a C++ executable
# add_executable(beginner_tutorials_node src/beginner_tutorials_node.cpp)

## Add cmake target dependencies of the executable
## same as for the library above
# add_dependencies(beginner_tutorials_node ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})

## Specify libraries to link a library or executable target against
# target_link_libraries(beginner_tutorials_node
#   ${catkin_LIBRARIES}
# )

#############
## Install ##
#############

# all install targets should use catkin DESTINATION variables
# See http://ros.org/doc/api/catkin/html/adv_user_guide/variables.html

## Mark executable scripts (Python etc.) for installation
## in contrast to setup.py, you can choose the destination
# install(PROGRAMS
#   scripts/my_python_script
#   DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
# )

## Mark executables and/or libraries for installation
# install(TARGETS beginner_tutorials beginner_tutorials_node
#   ARCHIVE DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
#   LIBRARY DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
#   RUNTIME DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
# )

## Mark cpp header files for installation
# install(DIRECTORY include/${PROJECT_NAME}/
#   DESTINATION ${CATKIN_PACKAGE_INCLUDE_DESTINATION}
#   FILES_MATCHING PATTERN "*.h"
#   PATTERN ".svn" EXCLUDE
# )

## Mark other files for installation (e.g. launch and bag files, etc.)
# install(FILES
#   # myfile1
#   # myfile2
#   DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION}
# )

#############
## Testing ##
#############

## Add gtest based cpp test target and link libraries
# catkin_add_gtest(${PROJECT_NAME}-test test/test_beginner_tutorials.cpp)
# if(TARGET ${PROJECT_NAME}-test)
#   target_link_libraries(${PROJECT_NAME}-test ${PROJECT_NAME})
# endif()

## Add folders to be run by python nosetests
# catkin_add_nosetests(test)

另外，当我尝试 Tsyvarev 给出的选项 1-3 时:

-- Using CATKIN_DEVEL_PREFIX: /home/camera/catkin_ws/src/briancv/devel
-- Using CMAKE_PREFIX_PATH: /usr
-- Using PYTHON_EXECUTABLE: /usr/bin/python
-- Using Debian Python package layout
-- Using empy: /usr/bin/empy
-- Using CATKIN_ENABLE_TESTING: ON
-- Call enable_testing()
-- Using CATKIN_TEST_RESULTS_DIR: /home/camera/catkin_ws/src/briancv/test_results
-- Found gtest sources under '/usr/src/gtest': gtests will be built
-- Using Python nosetests: /usr/bin/nosetests-2.7
-- catkin 0.6.18
CMake Warning at /opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:76 (find_package):
  Could not find a package configuration file provided by "roscpp" with any
  of the following names:

    roscppConfig.cmake
    roscpp-config.cmake

  Add the installation prefix of "roscpp" to CMAKE_PREFIX_PATH or set
  "roscpp_DIR" to a directory containing one of the above files.  If "roscpp"
  provides a separate development package or SDK, be sure it has been
  installed.
Call Stack (most recent call first):
  CMakeLists.txt:7 (find_package)


-- Could not find the required component 'roscpp'. The following CMake error indicates that you either need to install the package with the same name or change your environment so that it can be found.
CMake Error at /opt/ros/indigo/share/catkin/cmake/catkinConfig.cmake:83 (find_package):
  Could not find a package configuration file provided by "roscpp" with any
  of the following names:

    roscppConfig.cmake
    roscpp-config.cmake

  Add the installation prefix of "roscpp" to CMAKE_PREFIX_PATH or set
  "roscpp_DIR" to a directory containing one of the above files.  If "roscpp"
  provides a separate development package or SDK, be sure it has been
  installed.
Call Stack (most recent call first):
  CMakeLists.txt:7 (find_package)


-- Configuring incomplete, errors occurred!
See also "/home/camera/catkin_ws/src/briancv/CMakeFiles/CMakeOutput.log".
See also "/home/camera/catkin_ws/src/briancv/CMakeFiles/CMakeError.log".

Answer 1

如果有人像我一样来到这里寻找一个简单的解决方案，这就可以了:

sudo apt-get install ros-<distro>-roscpp

替换为您的 ROS 发行版，例如:

sudo apt-get install ros-melodic-roscpp