[FishBot教程]9.0.7. FishBot-Nav2导航测试
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@小鱼 刚才测试了几次，应该是我直接关闭终端的缘故造成的，现在可以了，感谢！
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你好，小鱼，我是双系统的22.04在输入:
git clone --recursive https://github.com/fishros/fishbot.git -b v1.0.0 --depth=1
fatal: 目标路径 'fishbot' 已经存在，并且不是一个空目录。
请问怎么处理这个问题，谢谢！ -
@86181314 换个目录就行了，因为当前目录下已经存在了fishbot这一目录，也可以删掉
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第一步出现了如下问题，不知如何解决 -
@小鱼 鱼哥，换个目录是什么意思？
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又有新的问题 -
@921203724 别一次性运行太多指令，不然都搞不清楚是哪个出错，一步步来
看你的错误是克隆错误，已经存在fishbot工作空间了
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@小鱼
已经下载了rosdepc，结果还是让我跑rosdep -
现在报错变了，变成这样了 -
现在变成这样了 -
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@小鱼 可我的E盘有47.3GB可用啊
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@小鱼 0 upgraded, 82 newly installed, 0 to remove and 177 not upgraded.
Need to get 119 MB of archives.
After this operation, 323 MB of additional disk space will be used.
E: You don't have enough free space in /var/cache/apt/archives/.
ERROR: the following rosdeps failed to install
apt: command [sudo -H apt-get install -y ros-humble-gazebo-ros-pkgs] failed
apt: command [sudo -H apt-get install -y gazebo] failed
apt: command [sudo -H apt-get install -y ros-humble-gazebo-ros] failed
apt: Failed to detect successful installation of [ros-humble-gazebo-ros-pkgs]
apt: Failed to detect successful installation of [gazebo]
apt: Failed to detect successful installation of [ros-humble-gazebo-ros]
colcon: command not found就是这样，显示我地方不够，我腾E盘几个G还是这样
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@小鱼 0 upgraded, 0 newly installed, 0 to remove and 177 not upgraded.
#All required rosdeps installed successfully
colcon: command not found
现在安装成功了，但是colcon还是不成功 -
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@小鱼 OSError: [Errno 28] No space left on device: 'log/build_2023-03-11_13-56-33'
鱼哥，编译告诉我空间不够了，有什么好用的办法腾出来？
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@921203724 最好重新装下系统，分配大点空间
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此回复已被删除！ -
@小鱼 在 [FishBot教程]7. FishBot-Nav2导航测试 中说：
source install/setup.bash
ros2 launch fishbot_bringup fishbot_bringup.launch.py需要添加
cd fishbot
source install/setup.bash -
此回复已被删除！
