SOLVED problem with loading plugin in python_init.py

hello! i try to start cinema 4d, auto-load scene with python_init.py script and auto-start render-exporter. i wrote this simple script to do it:

import c4d
def main():
    c4d.documents.LoadFile(path_to_scene)
    c4d.CallCommand(exporter_command)
if __name__=='__main__':
    main()

works fine, but i found that if scene contains plugin "Signal", i get message "several plugins used in this project are missing (Signal)". another plugins of this scene load fine. what am I doing wrong?

thank you!

Hi @wob please make use of Q&A Functionaility and tagging system for the next time see How to post Question.
Moreover, the python_init.py is called before any plugin registration as stated in the documentation see pytohn_init.py
So your best bet is probably to have a PluginMessage and check for C4DPL_STARTACTIVITY.

Regarding your question, this means you open a scene(LoadFile does it) but in this file, there is one plugin called signal (https://greyscalegorilla.com/downloads/signal/) which is not installed on your Cinema 4D version, so Cinema 4D advertise you that the scene may not work as expected.

Cheers,
Maxime.

@m_adam it's strange, but this small script works fine without any problems with cinema 4d s22. cinema 4d r20 show this error only.