title: UnhandledPromiseRejectionWarning: Error: You must `await server.start()` before calling `server.applyMiddleware()` at ApolloServer
body: <p>I am trying to start my nestJs server and It keeps giving me this error:</p>
  <p>UnhandledPromiseRejectionWarning: Error: You must <code>await server.start()</code> before calling <code>server.applyMiddleware()</code>
  at ApolloServer</p>
  <p>I'm not even sure where to debug from as I am still very new at NestJs and GraphQL.</p>