run tifig error

[fangxingyu]

i run tifig throw exception :
terminate called after throwing an instance of 'std::regex_error'
what(): regex_error
gcc version 6.5.0 (GCC)
ffmpeg -version
libavutil 55. 27.100 / 55. 27.100
libavcodec 57. 48.101 / 57. 48.101
libavformat 57. 40.101 / 57. 40.101
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 46.102 / 6. 46.102
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 1.100 / 2. 1.100

who can i do to run tifig

[OvenUSTC]

我也遇到这个问题，有什么办法解决？好像是政策表达式错误。