System.NotSupportedException

[praveenbinomial]

System.NotSupportedException: 'Specified method is not supported.
This exception was originally thrown at this call stack:
[External Code]
iSpyApplication.Sources.Video.MediaStream.DoStart() in MediaStream.cs
Giving error at
ffmpeg.av_dict_set_int(&options, "rw_timeout", _timeoutMicroSeconds * 1000, 0);
this line of code

[ispysoftware]

I think you're probably using a different version of ffmpeg - make sure you're using the ffmpeg binaries that are installed by the installer