安装distro ./test.sh 找不到路径

本文介绍了解决在使用Torch框架时遇到的路径问题。当运行更新脚本后,显示找不到路径,解决方案是在执行完./update.sh后,需要运行source/root/.bashrc以确保所有环境变量被正确加载。

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bashrc文件如下# ~/.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$//'\'')"' # Alias definitions. # You may want to put all your additions into a separate file like # ~/.bash_aliases, instead of adding them here directly. # See /usr/share/doc/bash-doc/examples in the bash-doc package. if [ -f ~/.bash_aliases ]; then . ~/.bash_aliases fi # enable programmable completion features (you don't need to enable # this, if it's already enabled in /etc/bash.bashrc and /etc/profile # sources /etc/bash.bashrc). if ! shopt -oq posix; then if [ -f /usr/share/bash-completion/bash_completion ]; then . /usr/share/bash-completion/bash_completion elif [ -f /etc/bash_completion ]; then . /etc/bash_completion fi fi export PYTHONPATH=$PYTHONPATH:/usr/lib/python3.8/dist-packages source /opt/ros/noetic/setup.bash source ~/ackermann_ws/devel/setup.bash source /opt/ros/noetic/setup.bash source /home/wz602-1/Downloads/yunzong/Sunray_swarm/devel/setup.bash # >>> conda initialize >>> # !! Contents within this block are managed by 'conda init' !! __conda_setup="$('/home/wz602-1/miniconda3/bin/conda' 'shell.bash' 'hook' 2> /dev/null)" if [ $? -eq 0 ]; then eval "$__conda_setup" else if [ -f "/home/wz602-1/miniconda3/etc/profile.d/conda.sh" ]; then . "/home/wz602-1/miniconda3/etc/profile.d/conda.sh" else export PATH="/home/wz602-1/miniconda3/bin:$PATH" fi fi unset __conda_setup # <<< conda initialize <<< source /home/wz602-1/catkin_ws/devel/setup.bash export ROS_PACKAGE_PATH=${ROS_PACKAGE_PATH}:~/catkin_ws/ source /opt/ros/noetic/setup.bash export GTK_IM_MODULE=fcitx export XMODIFIERS=@im=fcitx export QT_IM_MODULE=fcitx
最新发布
07-15
<think>我们正在解决ROS不到功能包的问题,并检查.bashrc配置是否正确。 根据引用[1]和[2]:.bashrc文件中的source命令顺序和位置很重要,如果配置不当,会导致ROS环境变量无法生效。 引用[1]提到,将`source /opt/ros/melodic/setup.bash`放在.bashrc文件的最后面解决了问题[^1]。 引用[2]说明,每次打开终端都会执行.bashrc中的命令来设置ROS环境,因此需要确保正确添加了source命令[^2]。 引用[3]和[4]指出,如果.bashrc中有错误的行,应该删除,并且安装必要的工具[^3][^4]。 因此,解决步骤包括: 1. 检查.bashrc中ROS环境变量的配置,确保source命令正确且没有冲突。 2. 确保自定义工作空间的setup.bash也被source(如果有的话)。 3. 安装缺失的依赖包。 4. 重新编译工作空间。 下面详细说明:</think>### ROS不到功能包的解决方案与.bashrc正确配置 #### 一、核心问题诊断 当ROS报告"不到功能包"时,90%的案例源于**.bashrc配置错误**(引用[1][2][3])[^1][^2][^3]。主要表现: 1. **环境变量未加载**:终端未正确加载ROS环境变量`$ROS_PACKAGE_PATH` 2. **路径冲突**:多个`source`命令顺序错误导致覆盖(引用[1])[^1] 3. **残留错误配置**:历史安装残留的无效路径(引用[3][4])[^3][^4] #### 二、.bashrc正确配置指南 通过终端验证配置(按顺序执行): ```bash # 步骤1:检查现有配置 gedit ~/.bashrc # 打开配置文件 # 步骤2:删除所有错误配置(关键!) # 到类似内容并删除: # - 重复的source命令 # - 不存在的路径(如旧版本ROS路径) # - 拼写错误(如melodic写成melodic)[^3][^4] # 步骤3:添加正确配置(二选一) ▼ 方案A:基础配置(推荐初学者) # 文件末尾添加(注意版本替换): source /opt/ros/<distro>/setup.bash # 如 melodic/noetic/galactic source ~/catkin_ws/devel/setup.bash # ROS1工作空间 source ~/ros2_ws/install/setup.bash # ROS2工作空间 ▼ 方案B:智能配置(避免路径覆盖) # 优先加载自定义工作空间: source ~/catkin_ws/devel/setup.bash source /opt/ros/melodic/setup.bash --extend # 使用--extend避免覆盖 ``` #### 三、配置验证与故障排除 ```bash # 验证1:检查环境变量 echo $ROS_PACKAGE_PATH # 正确输出应包含: # /opt/ros/melodic/share # /home/你的用户名/catkin_ws/src # 验证2:测试功能包查 rospack find <包名> # ROS1 ros2 pkg prefix <包名> # ROS2 # 故障排除(引用[1][4])[^1][^4]: 1. 若报错"command not found" → 未source系统级setup.bash 2. 若只显示系统路径 → 工作空间未编译或source顺序错误 3. 若出现bash警告 → 删除.bashrc中所有空行和无效字符[^3] ``` #### 四、依赖问题解决方案 当.bashrc正确但依然报错时(引用[2][4])[^2][^4]: ```bash # 安装核心依赖工具 sudo apt install python3-rosdep python3-rosinstall build-essential # 安装缺失功能包(示例) sudo apt install ros-melodic-gazebo-ros-control # 替换包名 rosdep install --from-paths src --ignore-src -y # 在工作空间运行 ``` #### 五、典型修复案例 **案例**:配置后仍报错`Could not find a package configuration file...` **原因**:工作空间未编译 或 编译后未source **解决**: ```bash cd ~/catkin_ws catkin_make # ROS1 colcon build --symlink # ROS2 source devel/setup.bash # 立即生效 ``` > **关键原则**: > 1. `.bashrc`中**最后一行**必须是`source`命令(引用[1])[^1] > 2. 自定义工作空间`source`应在系统路径**之前** > 3. 任何修改后执行`source ~/.bashrc`
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