title_body: Plutus Pioneer Program - Problem with plutus playground client I'm setting up my environment to run the example from lecture #1 (Week01 auction)
  All compilations went well but when I try the evaluate in the simulator I always receive:
  interpreter Errors
  ConnectionError (HttpExceptionRequest Request { host = &quot;localhost&quot; port = 8080 secure = False requestHeaders = [(&quot;Accept&quot;,&quot;application/json;charset=utf-8,application/json&quot;),(&quot;Content-Type&quot;,&quot;application/json;charset=utf-8&quot;)] path = &quot;/runghc&quot; queryString = &quot;&quot; method = &quot;POST&quot; proxy = Nothing rawBody = False redirectCount = 10 responseTimeout = ResponseTimeoutDefault requestVersion = HTTP/1.1 } ResponseTimeout)
  Please try again or contact support for assistance.
  
  The plutus-playground-server log has the smartcontract and the datum so I think that the call for evaluation was correctly sent but somehow it doesn't come back to the client. In my opinion it's more an issue related to the npm but I don't know how to debug it.
  I'm using Ubuntu, all the work done through nix-shell. Plutus tag: 3746610e53654a1167aeb4c6294c6096d16b0502
  UPDATE
  Further analysis brings me to the conclusion that my system is too slow for the client-server interaction. I saw that the issue is related only to the Auction contract (that's heavier than the demo ones) and watching the trace of the HTTP calls i notice that the /runghc POST takes 34 seconds to give back an answer.
  Is there any way i can configure the playground server to consider a timeout higher than 30 secs?
upvoted_answer: Seems strange for it to be a timeout issue (though I'm not an expert) as the server and the client should both be running on your laptop. I followed the steps as shown in Leet Dev's YT channel - is that what you did to?