flow

        
scss
        

            
        
     
λ flow
The flow server is not responding (0 retries remaining): /
Out of retries, exiting!

Try killing it;

        
css
        

            
        
     
flow stop

This won’t work;

        
javascript
        

            
        
     
import React, { ReactNode } from 'react';

This will;

        
python
        

            
        
     
import React from 'react';
import type { Node } from 'react';

Not only does flow language support need to be installed, but @builtin TypeScript and JavaScript Language Features needs to be disabled. Thanks Idan Dagan.