找不到模块“约翰尼五号”吗？

如何解决找不到模块“约翰尼五号”吗？

我对此很陌生，所以很抱歉，如果答案很明显，我正在尝试对Arduino Uno板进行编程，以点亮通过node.js和johnny-five在Raspberry上连接的面包板上的LED Pi 3b +（使用rpi作为桌面）。我安装了node.js版本14.9.0，并通过johnny-five，然后安装了Arduino IDE，并使用它将StandardFirmata下载到Arduino板上。我通过nano编写了一个简单程序，然后使用node led.js运行它。然后，我收到此错误消息：

internal/modules/cjs/loader.js:895
  throw err;
  ^

Error: Cannot find module 'johnny_five'
Require stack:
- /home/pi/led.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:892:15)
    at Function.Module._load (internal/modules/cjs/loader.js:742:27)
    at Module.require (internal/modules/cjs/loader.js:964:19)
    at require (internal/modules/cjs/helpers.js:88:18)
    at Object.<anonymous> (/home/pi/led.js:1:12)
    at Module._compile (internal/modules/cjs/loader.js:1075:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1096:10)
    at Module.load (internal/modules/cjs/loader.js:940:32)
    at Function.Module._load (internal/modules/cjs/loader.js:781:14)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12) {
  code: 'MODULE_NOT_FOUND',requireStack: [ '/home/pi/led.js' ]
}

知道为什么吗？帮助将不胜感激。谢谢！

之后的输出：

1598748959407 Connected /dev/ttyAMA0  
1598748969413 Device or Firmware Error A timeout occurred while connecting to the Board. 

Please check that you've properly flashed the board with the correct firmware.
See: https://github.com/rwaldron/johnny-five/wiki/Getting-Started#trouble-shooting

If connecting to a Leonardo or Leonardo clone,press the 'Reset' button on the board,wait approximately 11 seconds for complete reset,then run your program again.  
events.js:305
    throw err; // Unhandled 'error' event
    ^

Error [ERR_UNHANDLED_ERROR]: Unhandled error. ({
  type: 'error',timestamp: 1598748969413,class: 'Device or Firmware Error',message: 'A timeout occurred while connecting to the Board. \n' +
    '\n' +
    "Please check that you've properly flashed the board with the correct firmware.\n" +
    'See: https://github.com/rwaldron/johnny-five/wiki/Getting-Started#trouble-shooting\n' +
    '\n' +
    "If connecting to a Leonardo or Leonardo clone,then run your program again.",data: null
})
    at Board.emit (events.js:303:17)
    at Board.EventEmitter.emit (domain.js:486:12)
    at Board.log (/home/pi/johnny-five/lib/board.js:642:8)
    at Board.<computed> [as error] (/home/pi/johnny-five/lib/board.js:653:14)
    at Timeout._onTimeout (/home/pi/johnny-five/lib/board.js:384:14)
    at listOnTimeout (internal/timers.js:554:17)
    at processTimers (internal/timers.js:497:7) {
  code: 'ERR_UNHANDLED_ERROR',context: {
    type: 'error',message: 'A timeout occurred while connecting to the Board. \n' +
      '\n' +
      "Please check that you've properly flashed the board with the correct firmware.\n" +
      'See: https://github.com/rwaldron/johnny-five/wiki/Getting-Started#trouble-shooting\n' +
      '\n' +
      "If connecting to a Leonardo or Leonardo clone,data: null
  }
}