Error: AttributeError: vispy.visuals.volume has no attribute FRAG_SHADER on line 446 in logistic_mandelbrot.py

[ya-sh-vardh-an]

I have installed all the requirements but when I try to open the logistic_mandelbrot.py . It shows up:

File "C:\Users\ambay\my_codes\python\Chaos_graph\logistic_mandelbrot.py", line 446, in <module>
    NEW_TRANSLUCENT_FRAG_SHADER = vispy.visuals.volume.FRAG_SHADER.format(
AttributeError: module 'vispy.visuals.volume' has no attribute 'FRAG_SHADER'. Did you mean: '_FRAGMENT_SHADER'?

Please, help me how to solve this.