会出现以下的错误，求大神解答

Error: socket hang up

    at createHangUpError (_http_client.js:345:15)

    at TLSSocket.socketOnEnd (_http_client.js:437:23)

    at emitNone (events.js:110:20)

    at TLSSocket.emit (events.js:207:7)

    at endReadableNT (_stream_readable.js:1059:12)

    at _combinedTickCallback (internal/process/next_tick.js:138:11)

    at process._tickDomainCallback (internal/process/next_tick.js:218:9) code: 'ECONNRESET'