title: git@github.com: Permission denied (publickey) in conda environment on ubuntu 20.04
body: <p>I'm new to coding and am using ubuntu 20.04. The instruction asked &quot;clone my repo (originally from hbprosper) and set it up&quot; then asked to execute the very first command executed. I don't know what to do at this point. The instructions are here : <a href="https://a-kapoor.github.io/Pythia8_To_hepmc_To_ROOT/" rel="nofollow noreferrer">https://a-kapoor.github.io/Pythia8_To_hepmc_To_ROOT/</a></p>
  <p>And here are the lines from the terminal:</p>
  <pre><code>(pythia8withhepmc2) raseeb@raseeb:~/anaconda3/envs/pythia8withhepmc2$ git clone git@github.com:akapoorcern/hepmc2root.git
  
  Cloning into 'hepmc2root'...
  
  git@github.com: Permission denied (publickey).
  
  fatal: Could not read from remote repository.
  
  
  Please make sure you have the correct access rights
  and the repository exists.
  </code></pre>