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MichaelGrupp / evo

Python package for the evaluation of odometry and SLAM
https://michaelgrupp.github.io/evo/
GNU General Public License v3.0
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ImportError: Cannot load backend 'Qt5Agg' which requires the 'qt5' interactive framework, as 'headless' is currently running #534

Closed guoguoyi closed 1 year ago

guoguoyi commented 1 year ago

Description: I have an import error when running this evo on Linux:

Console output: Traceback (most recent call last): File "/home/hsr/UnVIO-master/evo-master/evo/entry_points.py", line 99, in launch main_module.run(args) File "/home/hsr/UnVIO-master/evo-master/evo/main_ape.py", line 294, in run common.plot_result(args, result, traj_ref, File "/home/hsr/UnVIO-master/evo-master/evo/common_ape_rpe.py", line 113, in plot_result from evo.tools import plot File "/home/hsr/UnVIO-master/evo-master/evo/tools/plot.py", line 35, in import matplotlib.pyplot as plt File "/home/hsr/anaconda3/lib/python3.9/site-packages/matplotlib/pyplot.py", line 2500, in switch_backend(rcParams["backend"]) File "/home/hsr/anaconda3/lib/python3.9/site-packages/matplotlib/pyplot.py", line 285, in switch_backend raise ImportError( ImportError: Cannot load backend 'Qt5Agg' which requires the 'qt5' interactive framework, as 'headless' is currently running

[ERROR] evo module evo.main_ape crashed - no logfile written (disabled)

MichaelGrupp commented 1 year ago

Try evo_config set plot_backend tkagg or evo_config set plot_backend agg. For any further help you need to describe a bit better what you are doing.

guoguoyi commented 1 year ago

Thanks a lot!! I tried "evo_config set plot_backend tkagg", it still didn't work. But setting "evo_config set plot_backend agg" is useful and the problem has been sovled