ros2 foxy 自定义消息接口编译 “没有规则可制作目标”
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背景：
[跟着网站的教程学ros2，因为我是ubuntu20.04，装了foxy版本]
问题描述：
在自定义消息接口那一节编译时出现了如下的问题：
Starting >>> village_interfaces --- stderr: village_interfaces make[1]: *** 没有规则可制作目 标“village_interfaces__py/CMakeFiles/ village_interfaces__py.dir/all”，由“CMakeFiles/ village_interfaces__python.dir/all” 需求。 停止。 make[1]: *** 正在等待未完成的任务.... make: *** [Makefile:146：all] 错误 2 --- Failed <<< village_interfaces [0.10s, exited with code 2] Summary: 0 packages finished [0.42s] 1 package failed: village_interfaces 1 package had stderr output: village_interfaces具体细节和上下文：
- CMakeLists.txt和package.xml都按照教程里的描述做了修改，但是还是出现了这个报错
尝试过的解决方法：
- 网上搜不到和我相同情况的报错。但是用同学的电脑编译这个自定义消息的包成功了
- 我电脑上还装了noetic，因为之前一直在用，有没有可能是这个引发的问题？（但是在打开终端时选择了source foxy的环境）
-被这个问题折磨两天了，求救！！！！
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@87725837
补充一下我的CMakeLists.txt:cmake_minimum_required(VERSION 3.5)
project(village_interfaces)if(NOT CMAKE_C_STANDARD)
set(CMAKE_C_STANDARD 99)
endif()if(NOT CMAKE_CXX_STANDARD)
set(CMAKE_CXX_STANDARD 14)
endif()if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
add_compile_options(-Wall -Wextra -Wpedantic)
endif()find_package(ament_cmake REQUIRED)
find_package(sensor_msgs REQUIRED)
find_package(rosidl_default_generators REQUIRED)rosidl_generate_interfaces(${PROJECT_NAME}
"msg/Novel.msg"
DEPENDENCIES sensor_msgs
)if(BUILD_TESTING)
find_package(ament_lint_auto REQUIRED)
ament_lint_auto_find_test_dependencies()
endif()ament_package()
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@87725837 请按照提问要求修改格式：https://fishros.org.cn/forum/topic/151/提问前必看-不符合要求的问题拒绝回答
另外你需要提供文件结构，相关文件的内容，注意尽量不要截图。
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package.xml
<?xml version="1.0"?> <?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?> <package format="3"> <name>village_interfaces</name> <version>0.0.0</version> <description>TODO: Package description</description> <maintainer email="">oem</maintainer> <license>TODO: License declaration</license> <buildtool_depend>ament_cmake</buildtool_depend> <test_depend>ament_lint_auto</test_depend> <test_depend>ament_lint_common</test_depend> <depend>sensor_msgs</depend> <build_depend>rosidl_default_generators</build_depend> <exec_depend>rosidl_default_runtime</exec_depend> <member_of_group>rosidl_interface_packages</member_of_group> <export> <build_type>ament_cmake</build_type> </export> </package>结构
village_interfaces ├── CMakeLists.txt ├── include │ └── village_interfaces ├── msg │ └── Novel.msg ├── package.xml └── srcNovel.msg
string conten sensor_msgs/Image image -
@87725837 你的构建命令是在哪一个目录下运行的
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@小鱼 工作空间下运行的
oem@oem-ThinkPad-X1-Yoga-3rd:~/town_ws$ colcon build --packages-select village_interfaces Starting >>> village_interfaces --- stderr: village_interfaces make[1]: *** 没有规则可制作目标“village_interfaces__py/CMakeFiles/village_interfaces__py.dir/all”，由“CMakeFiles/village_interfaces__python.dir/all” 需求。 停止。 make[1]: *** 正在等待未完成的任务.... make: *** [Makefile:146：all] 错误 2 --- Failed <<< village_interfaces [0.12s, exited with code 2] Summary: 0 packages finished [0.50s] 1 package failed: village_interfaces 1 package had stderr output: village_interfaces -
@87725837 排除一些环境因素先，可以尝试在root下构建：
在oem@oem-ThinkPad-X1-Yoga-3rd:~/town_ws$目录下执行如下命令：
sudo su
source /opt/ros/foxy/setup.bash
rm -rf build install log
colcon build -
@小鱼
结果如下：oem@oem-ThinkPad-X1-Yoga-3rd:~/town_ws$ sudo su [sudo] oem 的密码： root@oem-ThinkPad-X1-Yoga-3rd:/home/oem/town_ws# source /opt/ros/foxy/setup.bash root@oem-ThinkPad-X1-Yoga-3rd:/home/oem/town_ws# rm -rf build/ install/ log/ root@oem-ThinkPad-X1-Yoga-3rd:/home/oem/town_ws# colcon build Starting >>> village_interfaces Starting >>> village_li Starting >>> village_wang Finished <<< village_li [1.37s] --- stderr: village_interfaces make[1]: *** 没有规则可制作目标“village_interfaces__py/CMakeFiles/village_interfaces__py.dir/all”，由“CMakeFiles/village_interfaces__python.dir/all” 需求。 停止。 make[1]: *** 正在等待未完成的任务.... make: *** [Makefile:146：all] 错误 2 --- Failed <<< village_interfaces [2.91s, exited with code 2] Aborted <<< village_wang [8.64s] Summary: 1 package finished [9.06s] 1 package failed: village_interfaces 1 package aborted: village_wang 1 package had stderr output: village_interfaces root@oem-ThinkPad-X1-Yoga-3rd:/home/oem/town_ws#自定义消息的包还是一样的报错
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@87725837 尝试开一个新的工作空间，下载我的代码，进行构建测试，再排除下代码问题，代码地址：https://github.com/fishros/ros2_town
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@小鱼 结果如下：
oem@oem-ThinkPad-X1-Yoga-3rd:~$ git clone https://github.com/fishros/ros2_town 正克隆到 'ros2_town'... remote: Enumerating objects: 1134, done. remote: Counting objects: 100% (1134/1134), done. remote: Compressing objects: 100% (510/510), done. remote: Total 1134 (delta 556), reused 1053 (delta 477), pack-reused 0 接收对象中: 100% (1134/1134), 1.44 MiB | 701.00 KiB/s, 完成. 处理 delta 中: 100% (556/556), 完成. oem@oem-ThinkPad-X1-Yoga-3rd:~$ cd ros2_town/ oem@oem-ThinkPad-X1-Yoga-3rd:~/ros2_town$ ls README.md src oem@oem-ThinkPad-X1-Yoga-3rd:~/ros2_town$ cd src/ oem@oem-ThinkPad-X1-Yoga-3rd:~/ros2_town/src$ ls village_interfaces village_li village_wang village_zhang oem@oem-ThinkPad-X1-Yoga-3rd:~/ros2_town/src$ cd .. oem@oem-ThinkPad-X1-Yoga-3rd:~/ros2_town$ coclon build coclon：未找到命令 oem@oem-ThinkPad-X1-Yoga-3rd:~/ros2_town$ colcon build Starting >>> village_interfaces --- stderr: village_interfaces make[1]: *** 没有规则可制作目标“village_interfaces__py/CMakeFiles/village_interfaces__py.dir/all”，由“CMakeFiles/village_interfaces__python.dir/all” 需求。 停止。 make[1]: *** 正在等待未完成的任务.... make: *** [Makefile:146：all] 错误 2 --- Failed <<< village_interfaces [3.35s, exited with code 2] Summary: 0 packages finished [3.86s] 1 package failed: village_interfaces 1 package had stderr output: village_interfaces 3 packages not processed oem@oem-ThinkPad-X1-Yoga-3rd:~/ros2_town$ -
@87725837 在 ros2 foxy 自定义消息接口编译 “没有规则可制作目标” 中说：
coclon build
coclon：未找到命令
oem@oem-ThinkPad-X1-Yoga-3rd:~/ros2_town$ colcon build可以确定是环境问题了，应该和你混装ros和ros2造成的，请附上你的 ～/.bashrc 文件内容，进一步检查环境。
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# ~/.bashrc: executed by bash(1) for non-login shells. # see /usr/share/doc/bash/examples/startup-files (in the package bash-doc) # for examples # If not running interactively, don't do anything case $- in *i*) ;; *) return;; esac # don't put duplicate lines or lines starting with space in the history. # See bash(1) for more options HISTCONTROL=ignoreboth # append to the history file, don't overwrite it shopt -s histappend # for setting history length see HISTSIZE and HISTFILESIZE in bash(1) HISTSIZE=1000 HISTFILESIZE=2000 # check the window size after each command and, if necessary, # update the values of LINES and COLUMNS. shopt -s checkwinsize # If set, the pattern "**" used in a pathname expansion context will # match all files and zero or more directories and subdirectories. #shopt -s globstar # make less more friendly for non-text input files, see lesspipe(1) [ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)" # set variable identifying the chroot you work in (used in the prompt below) if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then debian_chroot=$(cat /etc/debian_chroot) fi # set a fancy prompt (non-color, unless we know we "want" color) case "$TERM" in xterm-color|*-256color) color_prompt=yes;; esac # uncomment for a colored prompt, if the terminal has the capability; turned # off by default to not distract the user: the focus in a terminal window # should be on the output of commands, not on the prompt #force_color_prompt=yes if [ -n "$force_color_prompt" ]; then if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then # We have color support; assume it's compliant with Ecma-48 # (ISO/IEC-6429). (Lack of such support is extremely rare, and such # a case would tend to support setf rather than setaf.) color_prompt=yes else color_prompt= fi fi if [ "$color_prompt" = yes ]; then PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ ' else PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ ' fi unset color_prompt force_color_prompt # If this is an xterm set the title to user@host:dir case "$TERM" in xterm*|rxvt*) PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1" ;; *) ;; esac # enable color support of ls and also add handy aliases if [ -x /usr/bin/dircolors ]; then test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)" alias ls='ls --color=auto' #alias dir='dir --color=auto' #alias vdir='vdir --color=auto' alias grep='grep --color=auto' alias fgrep='fgrep --color=auto' alias egrep='egrep --color=auto' fi # colored GCC warnings and errors #export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01' # some more ls aliases alias ll='ls -alF' alias la='ls -A' alias l='ls -CF' # Add an "alert" alias for long running commands. Use like so: # sleep 10; alert alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"' # Alias definitions. # You may want to put all your additions into a separate file like # ~/.bash_aliases, instead of adding them here directly. # See /usr/share/doc/bash-doc/examples in the bash-doc package. if [ -f ~/.bash_aliases ]; then . ~/.bash_aliases fi # enable programmable completion features (you don't need to enable # this, if it's already enabled in /etc/bash.bashrc and /etc/profile # sources /etc/bash.bashrc). if ! shopt -oq posix; then if [ -f /usr/share/bash-completion/bash_completion ]; then . /usr/share/bash-completion/bash_completion elif [ -f /etc/bash_completion ]; then . /etc/bash_completion fi fi source ~/realsense_ws/devel/setup.bash # >>> fishros initialize >>> echo "ros:foxy(1) noetic(2) ?" read choose case $choose in 1) source /opt/ros/foxy/setup.bash;; 2) source /opt/ros/noetic/setup.bash;; esac # <<< fishros initialize <<< -
@87725837 在 ros2 foxy 自定义消息接口编译 “没有规则可制作目标” 中说：
source ~/realsense_ws/devel/setup.bash
请去掉这句后再次测试，这是ros1的命令，可能会环境变量产生很大影响
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还是不行
这是我删掉bashrc里那句话后重新开的终端进行编译的结果：ros:foxy(1) noetic(2) ? 1 oem@oem-ThinkPad-X1-Yoga-3rd:~/ros2_town$ rm -r build/ log/ install/ oem@oem-ThinkPad-X1-Yoga-3rd:~/ros2_town$ colcon build --packages-select village_interfaces Starting >>> village_interfaces --- stderr: village_interfaces make[1]: *** 没有规则可制作目标“village_interfaces__py/CMakeFiles/village_interfaces__py.dir/all”，由“CMakeFiles/village_interfaces__python.dir/all” 需求。 停止。 make[1]: *** 正在等待未完成的任务.... make: *** [Makefile:146：all] 错误 2 --- Failed <<< village_interfaces [2.33s, exited with code 2] Summary: 0 packages finished [2.71s] 1 package failed: village_interfaces 1 package had stderr output: village_interfaces
