Unable to use a value of type 'VideoWriter' as an index

Im getting a strange error from the following:

 vv = VideoWriter('animated.avi', 'Uncompressed AVI');
    vv.FrameRate = 30;
    vv.Quality = 75;
    open(vv)

    writeVideo(vv,frame1)
    close(vv)
    

The error is the same as the title: 'Unable to use a value of type 'VideoWriter' as an index'

Answer 1

[Walter Roberson]

You have an existing variable named open or writeVideo or close so MATLAB thinks you are trying to index that variable.

[Lakerpurp24]

got it! there was a writeVideo variable, thank you!