VS2015: Show Potential Fixes Not Working


in visual studio 2015 the tool seems to be identifying issues well but the ‘Show potential fixes’ not appeared

an example code:

private int count;
public int Count
get { return count; }
set { count = value; }

I’m getting the warning:
|Warning|S2292|Make this an auto-implemented property and remove its backing

but no potential fixed suggested
when using vs2017 - all fine

Any help would be apprecaited