ubuntu 20.04 “rosrun tf view_frames“运行失败

ubuntu20.04 ROS noetic

Wanted to use

$ rosrun tf view_frames

then

Listening to /tf for 5.0 seconds
Done Listening
b'dot - graphviz version 2.42.3 (0)\n'
Traceback (most recent call last):
  File "/opt/ros/melodic/lib/tf/view_frames", line 119, in <module>
    generate(dot_graph)
  File "/opt/ros/melodic/lib/tf/view_frames", line 89, in generate
    m = r.search(vstr)
TypeError: cannot use a string pattern on a bytes-like object

Simply adding the .decode(‘utf-8’) to

m = r.search(vstr.decode('utf-8')) 

fixed it.

https://github.com/ros/geometry/pull/193
https://github.com/ros/geometry/issues/201