使用一键安装过程中遇到程序崩溃

[Cyan]

标题：使用一键安装过程中遇到程序崩溃

Traceback (most recent call last):
  File "/tmp/fishinstall/install.py", line 134, in <module>
  File "/tmp/fishinstall/install.py", line 123, in main
  File "/tmp/fishinstall/tools/base.py", line 1478, in run_tool_file
  File "/tmp/fishinstall/tools/tool_install_ros.py", line 417, in run
  File "/tmp/fishinstall/tools/tool_install_ros.py", line 408, in install_ros
  File "/tmp/fishinstall/tools/tool_install_ros.py", line 367, in choose_and_install_ros
  File "/tmp/fishinstall/tools/base.py", line 1041, in run
  File "/tmp/fishinstall/tools/base.py", line 1011, in run_command
  File "/tmp/fishinstall/tools/base.py", line 1024, in is_command_finish
AttributeError: 'CmdTask' object has no attribute 'sub'

本次运行详细日志文件已保存至 /tmp/fishros_install.log
-bash: /usr/bin/sudo: Input/output error
-bash: /usr/bin/sudo: Input/output error
-bash: /home/cyan/.bashrc: Input/output error