My nano is not able to upload the program to pro mini

This is the error i am getting while uploading . Here i have done all necessary steps so that nano works as programmer. I tried uploading program through upload as programmer

avrdude: stk500_initialize(): (a) protocol error, expect=0x14, resp=0x10

Seem to remember seeing similar myself at certain stages...a while ago. Do you see this when downloading to the programmer....or when sending from programmer (Nano) to Pro Mini?

A couple of checks. Make sure you don't have your Pro Mini connected to the Nano when you're writing to your Nano...after that, double check the RX/TX 'polarity' and just try swapping around.