Uncaught TypeError: Super expression must either be null or a function, not undefined

[skreddyt]

Uncaught TypeError: Super expression must either be null or a function, not undefined
i am getting this error i try npm r react-sparklines
npm i --save react-sparklines@1.6.0 both
that problem did not resolve please can you help me

[pimoGit]

Try this first: npm r react-sparklines
so you delet the prevoius one.

So it will be:
npm r react-sparklines
npm i --save react-sparklines@1.6.0